clean: update spanish owners file

Updates OWNERs file to match `kubernets/org` file updated at kubernetes/org#2522.

Author: raelga

OWNERS_ALIASES

@@ -50,11 +50,9 @@ aliases:
     - zparnold
   sig-docs-es-owners: # Admins for Spanish content
     - raelga
-    - alexbrand
+    - electrocucaracha
   sig-docs-es-reviews: # PR reviews for Spanish content
     - raelga
-    - alexbrand
-    # glo-pena
     - electrocucaracha
   sig-docs-fr-owners: # Admins for French content
     - remyleone