Revert of Set the javac target and source to 1.7 (patchset #2 id:20001 of https://chromiumcodereview.appspot.com/545363002/)

Reason for revert:
Not all bots have Java 7 yet :(

Original issue's description:
> Set the javac target and source to 1.7
>
> BUG=336589
> TBR=yfriedman@chromium.org
>
> Committed: https://crrev.com/165c0f17fe5760a3f346940d4fb2574d62cfe53b
> Cr-Commit-Position: refs/heads/master@{#295162}

TBR=cjhopman@chromium.org,yfriedman@chromium.org
NOTREECHECKS=true
NOTRY=true
BUG=336589

Review URL: https://codereview.chromium.org/579543003

Cr-Commit-Position: refs/heads/master@{#295165}


CrOS-Libchrome-Original-Commit: 094138696e943744d1489ebb98276b116eafed99
1 file changed
tree: 4bf23ca812aae4cf5d2050f70655aac76c6a92ce
  1. base/
  2. build/
  3. components/
  4. dbus/
  5. device/
  6. ipc/
  7. mojo/
  8. testing/
  9. third_party/
  10. ui/