chore: remove Amanda from codeowners (#29252)

Removes myself as a codeowner in favor of the round robin assignment.

Author: averyjohnston

.github/CODEOWNERS

@@ -21,13 +21,6 @@
 /packages/angular-server @sean-perkins @thetaPC
 /packages/angular/test @thetaPC
 
-## React
-
-/packages/react/ @amandaejohnston
-/packages/react-router @amandaejohnston
-/packages/react/test-app/
-/packages/react-router/test-app/
-
 ## Vue
 
 /packages/vue/ @thetaPC
@@ -37,22 +30,13 @@
 
 # Components
 
-/core/src/components/checkbox/ @amandaejohnston
-
-/core/src/components/datetime/ @amandaejohnston @sean-perkins
-
-/core/src/components/menu/ @amandaejohnston
-/core/src/components/menu-toggle/ @amandaejohnston
+/core/src/components/datetime/ @sean-perkins
 
 /core/src/components/nav/ @sean-perkins
 /core/src/components/nav-link/ @sean-perkins
 
-/core/src/components/radio/ @amandaejohnston
-/core/src/components/radio-group/ @amandaejohnston
-
 # Utilities
 
 /core/src/utils/content/ @sean-perkins
 /core/src/utils/gesture/ @liamdebeasi
 /core/src/utils/input-shims/ @liamdebeasi
-/core/src/utils/logging/ @amandaejohnston