Remove myself as a code owner (#4653)

AaronBallman · web-flow · commit d37744ac2892 · 2021-09-29T10:41:09.000-07:00
diff --git a/.github/CODEOWNERS b/.github/CODEOWNERS
@@ -1,7 +1,7 @@
 * @bader
 
 # Front-end compiler
-clang/ @premanandrao @elizabethandrews @AaronBallman
+clang/ @premanandrao @elizabethandrews
 
 # Driver
 clang/**/Driver @mdtoguchi @AGindinson @hchilama
