Remove DEPS patch which is no longer required.

patch/patches/.DEPS.git.patch

@@ -1,22 +0,0 @@
-diff --git .DEPS.git .DEPS.git
-index e430c58..c45292e 100644
---- .DEPS.git
-+++ .DEPS.git
-@@ -797,17 +797,5 @@ hooks = [
-          'src/tools/.*\\.py',
-     'name':
-          'remove_stale_pyc_files'
--},
--    {
--    'action':
--         [
--    'python',
--    'build/scripts/tools/runit.py',
--    'python',
--    'build/scripts/common/cros_chromite.py',
--    '-v'
--],
--    'pattern':
--         '.*/cros_chromite\\.py'
- }
- ]