fix(slack): remove duplicate effect that cleared subblocks on cred change (#2788)

Author: waleedlatif1

apps/sim/app/workspace/[workspaceId]/w/[workflowId]/components/workflow-block/workflow-block.tsx

@@ -35,7 +35,6 @@ import { getDependsOnFields } from '@/blocks/utils'
 import { useKnowledgeBase } from '@/hooks/kb/use-knowledge'
 import { useMcpServers, useMcpToolsQuery } from '@/hooks/queries/mcp'
 import { useCredentialName } from '@/hooks/queries/oauth-credentials'
-import { useCollaborativeWorkflow } from '@/hooks/use-collaborative-workflow'
 import { useSelectorDisplayName } from '@/hooks/use-selector-display-name'
 import { useVariablesStore } from '@/stores/panel'
 import { useWorkflowRegistry } from '@/stores/workflows/registry/store'
@@ -613,34 +612,6 @@ export const WorkflowBlock = memo(function WorkflowBlock({
     [isDeploying, setDeploymentStatus, refetchDeployment]
   )
 
-  const { collaborativeSetSubblockValue } = useCollaborativeWorkflow()
-
-  /**
-   * Clear credential-dependent fields when credential changes to prevent
-   * stale data from persisting with new credentials.
-   */
-  const prevCredRef = useRef<string | undefined>(undefined)
-  useEffect(() => {
-    const activeWorkflowId = useWorkflowRegistry.getState().activeWorkflowId
-    if (!activeWorkflowId) return
-    const current = useSubBlockStore.getState().workflowValues[activeWorkflowId]?.[id]
-    if (!current) return
-    const credValue = current.credential
-    const cred =
-      typeof credValue === 'object' && credValue !== null && 'value' in credValue
-        ? ((credValue as { value?: unknown }).value as string | undefined)
-        : (credValue as string | undefined)
-    if (prevCredRef.current !== cred) {
-      const hadPreviousCredential = prevCredRef.current !== undefined
-      prevCredRef.current = cred
-      if (hadPreviousCredential) {
-        const keys = Object.keys(current)
-        const dependentKeys = keys.filter((k) => k !== 'credential')
-        dependentKeys.forEach((k) => collaborativeSetSubblockValue(id, k, ''))
-      }
-    }
-  }, [id, collaborativeSetSubblockValue])
-
   const currentStoreBlock = currentWorkflow.getBlockById(id)
 
   const isStarterBlock = type === 'starter'