Exclude guava from robolectric
Exclude guava from robolectric

Robolectric 4.9 uses guava 31.x-jre that needs JDK 8 compatibility. But
axt needs JDK 7 compatibility, so this CL removes guava from Robolectric
dependency and uses one defined in axt.

Signed-off-by: utzcoz <bf4fcb59289e9979ebf7a02b1609ee526a91bd2d@outlook.com>

android/android-test,android/android-test,android/android-test,android/android-test,android/android-test