[core] Convert uses of std::set to std::unordered_set (#6325)

* src/mbgl/annotation/annotation_manager.hpp

* src/mbgl/algorithm/update_renderables.hpp

* src/mbgl/geometry/glyph_atlas.hpp

* src/mbgl/renderer/painter.cpp and src/mbgl/renderer/render_item.hpp

* src/mbgl/renderer/symbol_bucket.hpp and src/mbgl/text/glyph_store.hpp

* src/mbgl/sprite/sprite_atlas.hpp

* include/mbgl/storage/network_status.hpp

* src/mbgl/text/collision_tile.cpp

* src/mbgl/style/update_batch.hpp

* platform/default/mbgl/storage/offline_download.hpp

* Add GlyphRangeSet typedef

* Fix whitespace & unused imports

1 files changed, 2 insertions, 2 deletions

diff --git a/src/mbgl/sprite/sprite_atlas.hpp b/src/mbgl/sprite/sprite_atlas.hpp
index d23d3a0fd1..7a3c2c8b45 100644
--- a/src/mbgl/sprite/sprite_atlas.hpp
+++ b/src/mbgl/sprite/sprite_atlas.hpp
@@ -11,7 +11,7 @@
 #include <string>
 #include <map>
 #include <mutex>
-#include <set>
+#include <unordered_set>
 #include <array>
 #include <memory>
 
@@ -140,7 +140,7 @@ private:
     std::recursive_mutex mtx;
     BinPack<dimension> bin;
     std::map<Key, Holder> images;
-    std::set<std::string> uninitialized;
+    std::unordered_set<std::string> uninitialized;
     std::unique_ptr<uint32_t[]> data;
     std::atomic<bool> dirtyFlag;
     bool fullUploadRequired = true;