Zuul: remove explicit SQL reporters

These are deprecated and now produce a warning message.  The same
configuration is now implied.

Change-Id: I7fb67b85b20d881b5c006b7efb940f7c91c1531e

zuul.d/pipelines.yaml

@@ -23,11 +23,9 @@
       gerrit:
         # Note that gerrit keywords are case-sensitive.
         Verified: 1
-      mysql:
     failure:
       gerrit:
         Verified: -1
-      mysql:
 
 - pipeline:
     name: gate
@@ -64,11 +62,9 @@
       gerrit:
         Verified: 2
         submit: true
-      mysql:
     failure:
       gerrit:
         Verified: -2
-      mysql:
     window-floor: 20
     window-increase-factor: 2
 
@@ -85,10 +81,6 @@
       gerrit:
         - event: ref-updated
           ref: ^refs/heads/.*$
-    success:
-      mysql:
-    failure:
-      mysql:
 
 - pipeline:
     name: promote
@@ -108,10 +100,8 @@
         - event: change-merged
     success:
       gerrit: {}
-      mysql:
     failure:
       gerrit: {}
-      mysql:
 
 - pipeline:
     name: release
@@ -125,10 +115,6 @@
       gerrit:
         - event: ref-updated
           ref: ^refs/tags/[0-9]+(\.[0-9]+)*$
-    success:
-      mysql:
-    failure:
-      mysql:
 
 - pipeline:
     name: periodic
@@ -139,10 +125,6 @@
     trigger:
       timer:
         - time: '0 6 * * *'
-    success:
-      mysql:
-    failure:
-      mysql:
 
 - pipeline:
     name: periodic-weekly
@@ -155,10 +137,7 @@
         # Saturday 8am UTC is a better time to start weekend jobs, as Sunday
         # is a working day in some geographies.
         - time: '0 8 * * 6'
-    success:
-      mysql:
     failure:
-      mysql:
       smtp:
         from: zuul@opendev.org
         to: zuul-jobs-failures@lists.zuul-ci.org
@@ -174,10 +153,6 @@
       gerrit:
         - event: ref-updated
           ref: ^refs/tags/.*$
-    success:
-      mysql:
-    failure:
-      mysql:
 
 - pipeline:
     name: experimental
@@ -195,10 +170,8 @@
           comment: (?i)^(Patch Set [0-9]+:)?( [\w\\+-]*)*(\n\n)?\s*check experimental\s*$
     success:
       gerrit: {}
-      mysql:
     failure:
       gerrit: {}
-      mysql:
 
 - pipeline:
     name: third-party-check
@@ -244,7 +217,6 @@
           scheme: 'opendev-zuul-third-party-check'
           state: SUCCESSFUL
           message: 'Change passed all voting jobs'
-      mysql:
     failure:
       googlesource:
         comment: False
@@ -252,4 +224,3 @@
           scheme: 'opendev-zuul-third-party-check'
           state: FAILED
           message: 'Change failed'
-      mysql: