Remove extra from getJavaType.

Bug: 32559427
Test: hidl_test_java

Change-Id: I1a96630eed1b61ab4ff2959ced2e83f94e8fb36d
diff --git a/ArrayType.h b/ArrayType.h
index d993960..a7e5083 100644
--- a/ArrayType.h
+++ b/ArrayType.h
@@ -45,8 +45,7 @@
 
     void addNamedTypesToSet(std::set<const FQName> &set) const override;
 
-    std::string getJavaType(
-            std::string *extra, bool forInitializer) const override;
+    std::string getJavaType(bool forInitializer) const override;
 
     std::string getJavaWrapperType() const override;