Update git submodules

* Update plugins/gitiles from branch 'stable-3.0'
  to 4ebfe482b9cd3f6369a654b85c031f2be10ba05a
  - Bazel: Remove unused java_library import
    
    Change-Id: If8a38c325aa9780bbb5e3caa06f839030c0f3c03
    

plugins/gitiles

diff --git a/plugins/gitiles b/plugins/gitiles
index 48e003c..4ebfe48 160000
--- a/plugins/gitiles
+++ b/plugins/gitiles
@@ -1 +1 @@
-Subproject commit 48e003c50c29c4d2077d27474f9b78b99ad46397
+Subproject commit 4ebfe482b9cd3f6369a654b85c031f2be10ba05a