Update OWNERS

Remove marissaw@ since she is leaving Android.

Test: Compiles
Bug: 150462113
Change-Id: I4d99960d6ae6e9d4422ff4d23b773e426b9482fa
diff --git a/OWNERS b/OWNERS
index 9991fd8..75e29ae 100644
--- a/OWNERS
+++ b/OWNERS
@@ -1,6 +1,5 @@
 adelva@google.com
 john.stultz@linaro.org
 marcheu@google.com
-marissaw@google.com
 seanpaul@google.com
 zachr@google.com