remove cpu limits (#2050)

Author: deer-wmde

k8s/helmfile/env/production/sql.values.yaml.gotmpl

@@ -10,7 +10,6 @@ primary:
       cpu: 100m
       memory: 8Gi
     limits:
-      cpu: null
       memory: 8Gi
   persistence:
     enabled: true
@@ -74,7 +73,6 @@ secondary:
       cpu: 400m
       memory: 8Gi
     limits:
-      cpu: null
       memory: 8Gi
   readinessProbe:
     enabled: true

k8s/helmfile/env/staging/sql.values.yaml.gotmpl

@@ -4,7 +4,6 @@ primary:
       cpu: 750m
       memory: 1000Mi
     limits:
-      cpu: null
       memory: 1000Mi
   configuration: |-
     [mysqld]
@@ -61,7 +60,6 @@ secondary:
       cpu: 750m
       memory: 900Mi
     limits:
-      cpu: null
       memory: 900Mi
   readinessProbe:
     enabled: false