Revert 86732 - Switch to python2.6 as the default for pyauto on linux

BUG=81621

R=cmp@chromium.org
TEST=

Review URL: http://codereview.chromium.org/6992077

TBR=nirnimesh@google.com
Review URL: http://codereview.chromium.org/6987034

git-svn-id: http://src.chromium.org/svn/trunk/src/build@86739 4ff67af0-8c30-449e-8e8b-ad334ec8d88c

common.gypi

@@ -98,7 +98,7 @@
       'file_manager_extension%': 0,
 
       # Python version.
-      'python_ver%': '2.6',
+      'python_ver%': '2.5',
 
       # Set ARM-v7 compilation flags
       'armv7%': 0,