Revert "Promote IgnoredPureGetter and ReturnValueIgnored to errors" am: f2c826d348

Original change: https://android-review.googlesource.com/c/platform/external/error_prone/+/3287551

Change-Id: I621413ab3f42b883e3f576c5df1c468a9b8d1f28
Signed-off-by: Automerger Merge Worker <[email protected]>
diff --git a/soong/error_prone.go b/soong/error_prone.go
index 855e6b9..7660ea5 100644
--- a/soong/error_prone.go
+++ b/soong/error_prone.go
@@ -116,11 +116,13 @@
 		"-Xep:ComparisonOutOfRange:WARN",
 		"-Xep:EqualsHashCode:WARN",
 		"-Xep:GuardedBy:WARN",
+		"-Xep:IgnoredPureGetter:WARN",
 		"-Xep:ImmutableAnnotationChecker:WARN",
 		"-Xep:ImmutableEnumChecker:WARN",
 		"-Xep:IsLoggableTagLength:WARN",
 		"-Xep:MissingSuperCall:WARN",
 		"-Xep:RectIntersectReturnValueIgnored:WARN",
+		"-Xep:ReturnValueIgnored:WARN",
 	}
 
 	// The checks that are default-disabled