Remove javaFixtureFactory

Replaces uses of javaFixtureFactory with prepareForJavaTest and removes
the unused javaFixtureFactory.

Bug: 182885307
Test: m nothing
Change-Id: I809772d14af2af211b9e15ad676fbdc06b07cd46
diff --git a/java/androidmk_test.go b/java/androidmk_test.go
index 0b1961b..5eaa77b 100644
--- a/java/androidmk_test.go
+++ b/java/androidmk_test.go
@@ -135,7 +135,8 @@
 }
 
 func TestJavaSdkLibrary_RequireXmlPermissionFile(t *testing.T) {
-	result := javaFixtureFactory.Extend(
+	result := android.GroupFixturePreparers(
+		prepareForJavaTest,
 		PrepareForTestWithJavaSdkLibraryFiles,
 		FixtureWithLastReleaseApis("foo-shared_library", "foo-no_shared_library"),
 	).RunTestWithBp(t, `