Remove Git files from the INI/INI default_syntaxes preset

[michaelblyons]

With the new release of ST3.1, there are built-in syntax files for "Git Formats." ApplySyntax doesn't need to map them to the INI package anymore.

If you want to, you can also make a special rule for .git/config like this one from my ApplySyntax.sublime-settings user file:

        {
            "syntax": "Git Formats/Git Config",
            "rules": [
                {"file_path": ".*(\\\\|/)\\.git(\\\\|/)config(~\\w*)?"},
                {"file_path": ".*(\\\\|/)git_config(~\\w*)?$"},
            ],
        }

If you want, I can submit this directly as a PR when I get a chance.