Deprecate dummy enterprise key 2/2 (#21328)

Following [1/2](https://github.com/twentyhq/twenty/pull/20890)

Now that all usages of hasValidEnterpriseKey has been removed in prod
and deployed, we can safely remove it altogether.

---------

Co-authored-by: Copilot Autofix powered by AI <175728472+Copilot@users.noreply.github.com>

packages/twenty-client-sdk/src/metadata/generated/schema.graphql

@@ -957,7 +957,6 @@ type Workspace {
   installedApplications: [Application!]!
   currentBillingSubscription: BillingSubscription
   billingEntitlements: [BillingEntitlement!]!
-  hasValidEnterpriseKey: Boolean!
   hasValidSignedEnterpriseKey: Boolean!
   hasValidEnterpriseValidityToken: Boolean!
   workspaceUrls: WorkspaceUrls!

packages/twenty-client-sdk/src/metadata/generated/schema.ts

@@ -674,7 +674,6 @@ export interface Workspace {
     installedApplications: Application[]
     currentBillingSubscription?: BillingSubscription
     billingEntitlements: BillingEntitlement[]
-    hasValidEnterpriseKey: Scalars['Boolean']
     hasValidSignedEnterpriseKey: Scalars['Boolean']
     hasValidEnterpriseValidityToken: Scalars['Boolean']
     workspaceUrls: WorkspaceUrls
@@ -3601,7 +3600,6 @@ export interface WorkspaceGenqlSelection{
     installedApplications?: ApplicationGenqlSelection
     currentBillingSubscription?: BillingSubscriptionGenqlSelection
     billingEntitlements?: BillingEntitlementGenqlSelection
-    hasValidEnterpriseKey?: boolean | number
     hasValidSignedEnterpriseKey?: boolean | number
     hasValidEnterpriseValidityToken?: boolean | number
     workspaceUrls?: WorkspaceUrlsGenqlSelection

packages/twenty-client-sdk/src/metadata/generated/types.ts

@@ -1896,9 +1896,6 @@ export default {
             "billingEntitlements": [
                 230
             ],
-            "hasValidEnterpriseKey": [
-                6
-            ],
             "hasValidSignedEnterpriseKey": [
                 6
             ],