Revert 195328 "Use --internal-diff on svn 1.7+ to slightly reduc..."

Revert 195328 "Use --internal-diff on svn 1.7+ to slightly reduc..."

Reverting r195363, r195328 and r195308. gcl upload is hanging for me unless I revert these changes.

f:\src\chrome3\src>gcl upload o0m7

at this point, there's no output. If I press enter, I get:


Got an exception
Command svn diff --config-dir c:\users\jabdel~1\appdata\local\temp\tmp7dwbyp -r 195324:head svn://chrome-svn/chrome/trun
k/src/webkit/glue/dom_operations_unittest.cc returned non-zero exit status 1 in f:\src\chrome3\src
Authentication realm: <svn://chrome-svn:3690> 0039d316-1c4b-4281-b951-d872f2087c98
Password for 'jabdelmalek':
Authentication realm: <svn://chrome-svn:3690> 0039d316-1c4b-4281-b951-d872f2087c98

> Use --internal-diff on svn 1.7+ to slightly reduce disk thrashing.
> 
> This just saves the need to create and remove an empty directory on every call to GenerateDiff.
> 
> Review URL: https://chromiumcodereview.appspot.com/14064017

TBR=pkasting@chromium.org

Committed: https://src.chromium.org/viewvc/chrome?view=rev&revision=195421