Update CODEOWNERS

Closes #10016.

PiperOrigin-RevId: 274799155
diff --git a/CODEOWNERS b/CODEOWNERS
index 6ba13cc..596285a 100644
--- a/CODEOWNERS
+++ b/CODEOWNERS
@@ -57,12 +57,12 @@
 
 # Remote caching and execution
 
-/src/main/java/com/google/devtools/build/lib/remote/ @buchgr @ishikhman @ola-rozenfeld
+/src/main/java/com/google/devtools/build/lib/remote/ @buchgr @ola-rozenfeld
 
-/src/test/shell/bazel/remote/ @buchgr @ishikhman @ola-rozenfeld
+/src/test/shell/bazel/remote/ @buchgr @ola-rozenfeld
 
 /src/tools/execlog/ @buchgr @ola-rozenfeld
-/src/tools/remote/ @buchgr @ishikhman @ola-rozenfeld
+/src/tools/remote/ @buchgr @ola-rozenfeld
 
 # Execution and I/O related code