Git: Move submit highlighter to a separate file

Change-Id: I61e07b2abe3b1da1b56935bb3ce528a5f571705f
Reviewed-by: Tobias Hunger <tobias.hunger@digia.com>

src/plugins/git/gitsubmiteditorwidget.h

@@ -93,25 +93,6 @@ private:
     bool m_isInitialized;
 };
 
-// Highlighter for git submit messages. Make the first line bold, indicates
-// comments as such (retrieving the format from the text editor) and marks up
-// keywords (words in front of a colon as in 'Task: <bla>').
-
-class GitSubmitHighlighter : public TextEditor::SyntaxHighlighter
-{
-public:
-    explicit GitSubmitHighlighter(QTextEdit *parent);
-    explicit GitSubmitHighlighter(TextEditor::BaseTextDocument *parent);
-    void highlightBlock(const QString &text);
-
-    void initialize();
-private:
-    enum State { None = -1, Header, Other };
-    QTextCharFormat m_commentFormat;
-    QRegExp m_keywordPattern;
-    QChar m_hashChar;
-};
-
 } // namespace Internal
 } // namespace Git