removes script: auto where it's no longer needed (GoogleCloudPlatform#803)

Author: bshaffer

appengine/php72/grpc/app.yaml

@@ -1,8 +1,5 @@
 runtime: php72
 
 handlers:
-- url: /
-  script: auto
-
-- url: /(monitoring|spanner|speech)\.php
+- url: /(monitoring|spanner|speech)\.php$
   script: auto

appengine/php72/symfony-framework/app.yaml

@@ -22,6 +22,3 @@ handlers:
     static_files: public/\1
     upload: public/.*\.(ico|txt|gif|png|jpg)$
 
-  # Declare a catch-all to send all other routes to be handled by the application.
-  - url: .*
-    script: auto

appengine/php72/wordpress/files/app.yaml

@@ -22,5 +22,3 @@ handlers:
   static_files: wp-includes/images/media/\1
   upload: wp-includes/images/media/.*\.(ico|jpg|jpeg|png|gif|woff|ttf|otf|eot|svg)$
 
-- url: .*
-  script: auto