Removed unnecessary fomat file as it breaks some clang builds

Change-Id: I40467afda7d07731947b9c456560444af2da8686

diff --git a/format b/format
deleted file mode 100755 (executable)
index c5630b4..0000000
--- a/format
+++ /dev/null
@@ -1 +0,0 @@
-git diff -U0 --no-color HEAD^ | clang-format-diff -i -p1
\ No newline at end of file