Android Findbugs: Remove TouchUtils as it shadows the name of the superclass

Can be removed after and alternative was introduced in
https://codereview.chromium.org/12250031/
and all references to the old class has been changed to use the new class.

BUG=


Review URL: https://chromiumcodereview.appspot.com/12330159

git-svn-id: http://src.chromium.org/svn/trunk/src/build@185404 4ff67af0-8c30-449e-8e8b-ad334ec8d88c

android/findbugs_filter/findbugs_known_bugs.txt

@@ -1,4 +1,3 @@
-H B Nm: The class name org.chromium.content.browser.test.util.TouchUtils shadows the simple name of the superclass android.test.TouchUtils  At TouchUtils.java
 H C EC: Using pointer equality to compare a JavaBridgeCoercionTest$CustomType with a JavaBridgeCoercionTest$CustomType2 in org.chromium.content.browser.JavaBridgeCoercionTest.testPassJavaObject()  At JavaBridgeCoercionTest.java
 H D RCN: Redundant nullcheck of org.chromium.content.browser.SandboxedProcessConnection.mConnectionParams, which is known to be non-null in org.chromium.content.browser.SandboxedProcessConnection.doConnectionSetup()  Redundant null check at SandboxedProcessConnection.java
 H D ST: Write to static field org.chromium.net.test.util.TestWebServer.sInstance from instance method org.chromium.net.test.util.TestWebServer.shutdown()  At TestWebServer.java