Revert flaky FolderNameProviderTest

Bug: 325088328
Test: Presubmit passes
Flag: EXEMPT test-only
Change-Id: I22c0bfdea32f552ffdb5dacc34038f7b1c668762
diff --git a/tests/multivalentTests/src/com/android/launcher3/folder/FolderNameProviderTest.java b/tests/src/com/android/launcher3/folder/FolderNameProviderTest.java
similarity index 100%
rename from tests/multivalentTests/src/com/android/launcher3/folder/FolderNameProviderTest.java
rename to tests/src/com/android/launcher3/folder/FolderNameProviderTest.java