Remove bazel-genfiles from .gitignore

Change-Id: I73480b535bbcb040e4d426c24b64623bd998bece

.gitignore

diff --git a/.gitignore b/.gitignore
index 72d1580..a4ec9de 100644
--- a/.gitignore
+++ b/.gitignore
@@ -2,7 +2,6 @@
 /.project
 /.settings
 /bazel-bin
-/bazel-genfiles
 /bazel-out
 /bazel-lfs
 /bazel-testlogs