Update Mockito source to commit 8b2afedf3f

The only change since the previous commit of Mockito source is to remove the
unused import which required a manual change in our copy. This change ends up
effectively just removing the description of that manual change.

Change-Id: I5420d4972f84f18557e1668a9036f28ea581a8f1
diff --git a/CHANGES.android b/CHANGES.android
deleted file mode 100644
index 302f6c6..0000000
--- a/CHANGES.android
+++ /dev/null
@@ -1,4 +0,0 @@
-One manual change is required after running update_source.sh:
-
-In src/org/mockito/internal/stubbing/defaultanswers/ReturnsMocks.java, remove
-the unused import org.mockito.internal.creation.jmock.ClassImposterizer.
diff --git a/update_source.sh b/update_source.sh
index bfe31f2..f64bf87 100755
--- a/update_source.sh
+++ b/update_source.sh
@@ -4,8 +4,6 @@
 #
 # Retrieves the current Mockito source code into the current direcory, exlcuding portions related
 # to constructing Mock objects in the JVM.
-#
-# See also CHANGES.android for required manual changes to the Mockito source code.
 
 SOURCE="git://github.com/mockito/mockito.git"
 INCLUDE="