Revert "add gflags to deps to allow command line parameters."

This reverts commit 2dd3d923.

Reason: chromium_git is a missing variable, and to properly
add gflags, we need to check in GYP files in third_party/gflags
first, then add the DEPS entry.

BUG=libyuv:507
TBR=fbarchard@chromium.org

Review URL: https://codereview.chromium.org/1406323002 .

DEPS

@@ -9,16 +9,6 @@ vars = {
   'chromium_revision': 'bb79186c63ff4eff7a2a318a21731005c53f269b',
 }
 
-# NOTE: Prefer revision numbers to tags for svn deps. Use http rather than
-# https; the latter can cause problems for users behind proxies.
-deps = {
-  'src/third_party/gflags/src':
-    Var('chromium_git') + '/external/gflags/src@e7390f9185c75f8d902c05ed7d20bb94eb914d0c', # from svn revision 82
-}
-
-# Define rules for which include paths are allowed in our source.
-include_rules = [ '+gflags' ]
-
 hooks = [
   {
     # Clone chromium and its deps.

README.chromium

 Name: libyuv
 URL: http://code.google.com/p/libyuv/
-Version: 1513
+Version: 1512
 License: BSD
 License File: LICENSE
 

include/libyuv/version.h

@@ -11,6 +11,6 @@
 #ifndef INCLUDE_LIBYUV_VERSION_H_  // NOLINT
 #define INCLUDE_LIBYUV_VERSION_H_
 
-#define LIBYUV_VERSION 1513
+#define LIBYUV_VERSION 1512
 
 #endif  // INCLUDE_LIBYUV_VERSION_H_  NOLINT