1 files changed, 0 insertions, 48 deletions
diff --git a/src/flake8/exceptions.py b/src/flake8/exceptions.py
index bef6f4b..ea9bc98 100644
--- a/src/flake8/exceptions.py
+++ b/src/flake8/exceptions.py
@@ -93,51 +93,3 @@ class PluginExecutionFailed(Flake8Exception):
             "name": self.plugin["plugin_name"],
             "exc": self.original_exception,
         }
-
-
-class HookInstallationError(Flake8Exception):
-    """Parent exception for all hooks errors."""
-
-
-class GitHookAlreadyExists(HookInstallationError):
-    """Exception raised when the git pre-commit hook file already exists."""
-
-    def __init__(self, path):  # type: (str) -> None
-        """Initialize the exception message from the `path`."""
-        self.path = path
-        tmpl = (
-            "The Git pre-commit hook ({0}) already exists. To convince "
-            "Flake8 to install the hook, please remove the existing "
-            "hook."
-        )
-        super(GitHookAlreadyExists, self).__init__(tmpl.format(self.path))
-
-
-class MercurialHookAlreadyExists(HookInstallationError):
-    """Exception raised when a mercurial hook is already configured."""
-
-    hook_name = None  # type: str
-
-    def __init__(self, path, value):  # type: (str, str) -> None
-        """Initialize the relevant attributes."""
-        self.path = path
-        self.value = value
-        tmpl = (
-            'The Mercurial {0} hook already exists with "{1}" in {2}. '
-            "To convince Flake8 to install the hook, please remove the "
-            "{0} configuration from the [hooks] section of your hgrc."
-        )
-        msg = tmpl.format(self.hook_name, self.value, self.path)
-        super(MercurialHookAlreadyExists, self).__init__(msg)
-
-
-class MercurialCommitHookAlreadyExists(MercurialHookAlreadyExists):
-    """Exception raised when the hg commit hook is already configured."""
-
-    hook_name = "commit"
-
-
-class MercurialQRefreshHookAlreadyExists(MercurialHookAlreadyExists):
-    """Exception raised when the hg commit hook is already configured."""
-
-    hook_name = "qrefresh"