Remove generated artifacts from git

Change-Id: I1d8f9a5a4519004618e2df87c28fdb8849b68c00
diff --git a/.gitignore b/.gitignore
index 2b3e6ef..1e1f0e1 100644
--- a/.gitignore
+++ b/.gitignore
@@ -32,7 +32,7 @@
 
 # Protobuf output files
 voltha/**/*.desc
-ofagent/protos/**/*_pb2.py
+**/*_pb2.py
 
 # Editors
 *.bak