[3.14] Remove Savannah from JIT and optimizer CODEOWNERS (GH-159775) (#159782)

Author: savannahostrowski

.github/CODEOWNERS

@@ -6,7 +6,6 @@
 
 # GitHub
 .github/**                    @ezio-melotti @hugovk @AA-Turner @webknjaz @StanFromIreland
-.github/workflows/jit.yml     @savannahostrowski
 Tools/build/compute-changes.py              @AA-Turner @hugovk @webknjaz @StanFromIreland
 Lib/test/test_tools/test_compute_changes.py @AA-Turner @hugovk @webknjaz @StanFromIreland
 
@@ -33,7 +32,7 @@ Lib/test/test_build_details.py          @FFY00
 **/*context*                  @1st1
 **/*genobject*                @markshannon
 **/*hamt*                     @1st1
-**/*jit*                      @brandtbucher @savannahostrowski
+**/*jit*                      @brandtbucher
 Python/perf_jit_trampoline.c  # Exclude the owners of "**/*jit*", above.
 Objects/set*                  @rhettinger
 Objects/dict*                 @methane @markshannon