[ACS-10592] Remove 'secret' field from OAUTH config across ADF/ACA/ADW (#11332)

docs/core/components/login.component.md

@@ -196,7 +196,6 @@ You can access an external provider to get an auth token for a user:
     "oauth2" : {
       "host": "http://myhost.com",
       "clientId": "my-client-id",
-      "secret": ""
     }
 }
 ```
@@ -294,7 +293,6 @@ enabled the setting in `app.config.json`) then the [login component](login.compo
       "host": "<AUTH-SERVER>/auth/realms/alfresco",
       "clientId": "activiti",
       "scope": "openid",
-      "secret": "",
       "implicitFlow": true,
       "silentLogin": false,
       "redirectUri": "/",
@@ -324,7 +322,6 @@ You can also enable automatic redirection to the OAuth provider using the follow
     "host": "<AUTH-SERVER>/auth/realms/alfresco",
     "clientId": "alfresco",
     "scope": "openid",
-    "secret": "",
     "implicitFlow": true,
     "silentLogin": true,
     "redirectSilentIframeUri": "/assets/silent-refresh.html",

docs/user-guide/authentication.md

@@ -33,7 +33,7 @@ OAuth2 is a protocol that allows the application to authorize operations without
     
     silentLogin: Enables silent authentication.
     
-    secret: The application's secret, used for secure authentication.
+    secret: Deprecated and removed. The application's secret, used for secure authentication.
     
     redirectUri: Where to redirect after a successful login.
     
@@ -86,7 +86,6 @@ OAuth2 is a protocol that allows the application to authorize operations without
   "oauth2": {
     "host": "https://your-idp.auth0.com",
     "clientId": "",
-    "secret": "",
     "scope": "openid profile email offline_access",
     "implicitFlow": false,
     "codeFlow": true,
@@ -112,7 +111,6 @@ OAuth2 is a protocol that allows the application to authorize operations without
     "oauth2": {
         "host": "https://cognito-idp.your-idp-url",
         "clientId": "",
-        "secret": "",
         "scope": "openid profile email",
         "implicitFlow": false,
         "codeFlow": true,