remove gql standard notifications (#204)

Author: renetapopova

modules/ROOT/pages/notifications/index.adoc

@@ -93,26 +93,6 @@ Additional helper methods are exposed for some useful fields.
 !===
 |===
 
-=== Standard-defined GQLSTATUS notification codes
-
-The GQL standard defines a set of GQLSTATUS codes that are used to represent successful completion, warnings, and informational messages.
-The following table lists the standard-defined GQLSTATUS codes and their meanings:
-
-.Standard-defined GQLSTATUS notification codes
-[options="header", cols="<1s,<4"]
-|===
-|GQLSTATUS code | StatusDescription
-| 00000	        | note: successful completion
-| 00001	        | note: successful completion - omitted result
-| 01000	        | warn: warning
-| 01004	        | warn: string data, right truncation
-| 01G03	        | warn: graph does not exist
-| 01G04	        | warn: graph type does not exist
-| 01G11	        | warn: null value eliminated in set function
-| 02000	        | note: no data
-| 03000	        | info: informational
-|===
-
 [[general-codes-for-success]]
 === General codes for success