[libgroff]: Drop `a_delete` preprocessor wrapper.

... for the `delete` operator.  It has been rendered unnecessary by the
removal of support for ancient C++ compilers.

* src/include/lib.h (a_delete): Drop symbol definition.

* src/devices/grohtml/output.cpp (word::~word):
* src/devices/grohtml/post-html.cpp (char_block::char_block,
  assert_state::~assert_state, assert_state::add,
  assert_state::close, replace_negate_str):
* src/devices/grops/ps.cpp (ps_font::ps_font,
  subencoding::subencoding, ps_printer::define_encoding,
  ps_printer::encode_fonts):
* src/devices/grops/psrm.cpp (resource_manager::document_setup,
  resource_manager::supply_resource):
* src/devices/grotty/tty.cpp (tty_printer::tty_color,
  tty_printer::tty_printer, tty_printer::color_to_idx,
  tty_printer::add_char):
* src/include/itable.h (ITABLE(T)::~ITABLE(T),
  ITABLE(T)::define):
* src/include/ptable.h (PTABLE(T)::~PTABLE(T),
  PTABLE(T)::define):
* src/libs/libbib/index.cpp
  (index_search_item::~index_search_item, make_index_search_item,
  index_search_item_iterator::index_search_item_iterator,
  index_search_item::get_tag, index_search_item::munge_filename,
  index_search_item::search):
* src/libs/libbib/linear.cpp (bmpattern::~bmpattern,
  file_buffer::file_buffer, file_buffer::load,
  linear_searcher::linear_searcher,
  linear_searcher::~linear_searcher):
* src/libs/libbib/search.cpp
  (search_list_iterator::search_list_iterator,
  search_item::search_item):
* src/libs/libdriver/input.cpp (IntArray::~IntArray,
  IntArray::append, StringBuf::~StringBuf, StringBuf::append,
  get_integer_arg, parse_x_command, do_file):
* src/libs/libdriver/printer.cpp (printer::printer,
  printer::load_font, text_file::~text_file, text_file::next,
  font::~font, font_widths_cache::~font_widths_cache,
  font:alloc_ch_index, font::extend_ch, font::compact,
  font::load_desc):
* src/libs/libgroff/fontfile.cpp (font::open_file):
* src/libs/libgroff/relocate.cpp (searchpath, searchpathext,
  set_current_prefix):
* src/libs/libgroff/searchpath.cpp (search_path::search_path,
  search_path::command_line_dir, search_path::open_file,
  search_path::open_file_cautious):
* src/libs/libgroff/string.cpp (sfree, srealloc,
  string::remove_spaces):
* src/libs/libgroff/symbol.cpp (symbol::symbol, concat):
* src/libs/libgroff/tmpfile.cpp (temp_init::temp_init,
  xtmpfile_list_init::~xtmpfile_list_init, xtmpfile):
* src/preproc/eqn/box.cpp (set_gfont, set_grfont, set_gbfont,
  box_list::append, box_list::~box_list):
* src/preproc/eqn/delim.cpp (make_delim_box,
  delim_box::~delim_box):
* src/preproc/eqn/eqn.ypp (number):
* src/preproc/eqn/lex.ypp (file_input::~file_input,
  argument_macro_input::~argument_macro_input):
* src/preproc/eqn/pile.ypp (matrix_box::~matrix_box,
  matrix_box::append):
* src/preproc/eqn/special.cpp (special_box::~special_box):
* src/preproc/eqn/text.ypp (set_char_type):
* src/preproc/html/pre-html.cpp (get_line, scanArguments):
* src/preproc/pic/object.cpp (output::~output,
  output::set_args, text_item::~text_item,
  object_spec::~object_spec, command_object::~command_object,
  line_object::~line_object):
* src/preproc/pic/pic.ypp (placeless_element, reset_variables,
  print_args, text_expr, object_spec, text, sprintf_args, path):
* src/preproc/refer/command.cpp (input_item::~input_item,
  input_item::peek_char):
* src/preproc/refer/label.ypp (lookup_label):
* src/preproc/refer/refer.cpp (store_citation, store_reference):
* src/preproc/tbl/main.cpp (format::add_rows, format::~format):
* src/preproc/tbl/table.cpp (block_entry::~block_entry,
  table::~table, table::allocate):
* src/roff/groff/groff.cpp (possible_command::~possible_command,
  possible_command::clear_name):
* src/roff/troff/column.cpp
  (justification_spec::~justification_spec,
  justification_spec::append):
* src/roff/troff/dictionary.cpp (dictionary::lookup):
* src/roff/troff/env.cpp (override_sizes, tab_stops::to_string,
  hyphen_word, hyphen_trie::insert_hyphenation):
* src/roff/troff/input.cpp (read_long_escape_name, token::next,
  do_get_long_name, temp_iterator::~temp_iterator, get_delim_name,
  pipe_source, read_string, pipe_output, system_request,
  open_mac_file, do_macro_source, do_register_assignment,
  do_string_assignment, read_draw_node, copy_mode_error):
* src/roff/troff/node.cpp (troff_output_file::set_font,
  troff_output_file::~troff_output_file, draw_node::is_tag,
  grow_font_table, font_family::~font_family,
  font_family::make_definite):
* src/utils/hpftodit/hpftodit.cpp (name_list::~name_list,
  read_map):
* src/utils/indxbib/indxbib.cpp (main, get_cwd):
* src/utils/tfmtodit/tfmtodit.cpp (tfm::~tfm, tfm::load): Port
  uses of `a_delete(xxx)` to `delete[]`.

3 files changed, 5 insertions, 5 deletions

diff --git a/src/preproc/refer/command.cpp b/src/preproc/refer/command.cpp
index 75b197802..7860e3d89 100644
--- a/src/preproc/refer/command.cpp
+++ b/src/preproc/refer/command.cpp
@@ -52,7 +52,7 @@ input_item::input_item(string &s, const char *fn, int ln)
 
 input_item::~input_item()
 {
-  a_delete filename;
+  delete[] filename;
 }
 
 inline int input_item::peek_char()
@@ -787,7 +787,7 @@ static void command_loop()
     for (int i = 0; i < argc; i++)
       argv[i].s = ptr = strchr(ptr, '\0') + 1;
     execute_command(command.contents(), argc, argv);
-    a_delete argv;
+    delete[] argv;
     if (res == -1)
       break;
   }
diff --git a/src/preproc/refer/label.ypp b/src/preproc/refer/label.ypp
index ed02052be..89876b682 100644
--- a/src/preproc/refer/label.ypp
+++ b/src/preproc/refer/label.ypp
@@ -995,7 +995,7 @@ label_info *lookup_label(const string &label)
 	    ;
 	*p = old_table[i];
 	}
-    a_delete old_table;
+    delete[] old_table;
   }
   return result;
 }
diff --git a/src/preproc/refer/refer.cpp b/src/preproc/refer/refer.cpp
index ce5204a9d..5cf05c26c 100644
--- a/src/preproc/refer/refer.cpp
+++ b/src/preproc/refer/refer.cpp
@@ -692,7 +692,7 @@ static void store_citation(reference *ref)
       citation_max *= 2;
       citation = new reference *[citation_max];
       memcpy(citation, old_citation, ncitations*sizeof(reference *));
-      a_delete old_citation;
+      delete[] old_citation;
     }
   }
   citation[ncitations++] = ref;
@@ -751,7 +751,7 @@ static unsigned store_reference(const string &str)
 	    ;
 	  *p = old_table[i];
 	}
-      a_delete old_table;
+      delete[] old_table;
     }
   }
   if (label_in_text)