m7: remove unneeded vendorsetup.sh

Change-Id: Ib72a5cc7625b0b71605021a7268070e468ce0a09
diff --git a/vendorsetup.sh b/vendorsetup.sh
deleted file mode 100755
index fdb60bf..0000000
--- a/vendorsetup.sh
+++ /dev/null
@@ -1 +0,0 @@
-add_lunch_combo cm_m7-eng