Java: remove DefaultAndroidWidgetSources class

Author: Jami Cogswell

java/ql/lib/semmle/code/java/frameworks/android/Widget.qll

@@ -4,12 +4,6 @@ import java
 private import semmle.code.java.dataflow.ExternalFlow
 private import semmle.code.java.dataflow.FlowSources
 
-private class DefaultAndroidWidgetSources extends RemoteFlowSource {
-  DefaultAndroidWidgetSources() { sourceNode(this, "remote") }
-
-  override string getSourceType() { result = "Android widget source" }
-}
-
 private class EditableToStringStep extends AdditionalTaintStep {
   override predicate step(DataFlow::Node n1, DataFlow::Node n2) {
     exists(MethodAccess ma |