changes base on the commetns and deletion of the test file

Author: taailri1

package/crds/rds.aws.crossplane.io_dbinstances.yaml

@@ -1771,9 +1771,7 @@ spec:
                       Default: io1, if the Iops parameter is specified. Otherwise, gp2.
                     type: string
                   tagIgnorePrefixes:
-                    description: |-
-                      TagIgnorePrefixes tells the reconciler to pretend tags with these
-                      prefixes don't exist during diff/updates.
+                    description: List of tag prefixes to be ignored during reconciliation.
                     items:
                       type: string
                     type: array

pkg/controller/rds/dbinstance/ignore_tags_test.go

@@ -534,7 +534,7 @@ func (e *custom) isUpToDate(ctx context.Context, cr *svcapitypes.DBInstance, out
 		cmpopts.IgnoreFields(svcapitypes.CustomDBInstanceParameters{}, "DeleteAutomatedBackups"),
 	)
 
-	ignore := append([]string{"aws:", "c7n:"}, cr.Spec.ForProvider.TagIgnorePrefixes...)
+	ignore := append([]string{"aws:"}, cr.Spec.ForProvider.TagIgnorePrefixes...)
 	var observedTags []*svcsdk.Tag
 	if db.TagList != nil {
 		for _, tag := range db.TagList { // index discarded with _