Delete some ide autogen files

Theses 2 files are always edited by my language server.
And I always need to avoid adding them to my commit
despite my exclude rules
This CL delete them and add the rule to gitignore.

Test: None
Change-Id: Ief63e548bc63899dadeb53a51a16d6cd8ca0e002
diff --git a/.gitignore b/.gitignore
index c47cc8b..2dffb7a 100644
--- a/.gitignore
+++ b/.gitignore
@@ -1,4 +1,5 @@
 .idea
+.project
 *.iml
 *.sw*
 gen/
\ No newline at end of file