chore: remove organization_id suffix from org_member roles in database (#13473)

Organization member's table is already scoped to an organization.
Rolename should avoid having the org_id appended.

Wipes all existing organization role assignments, which should not be used anyway.

coderd/apidoc/docs.go

@@ -11458,6 +11458,9 @@ const docTemplate = `{
                 },
                 "name": {
                     "type": "string"
+                },
+                "organization_id": {
+                    "type": "string"
                 }
             }
         },