Validate requests to logSearchApi endpoint (#1375)

- Previously any user with a validate session in console could query the
  `/api/v1/logs/search` endpoint which was not ideal, now we are
  limiting that to users with the `admin:OBDInfo` iam action
- Removing deprecated `has-permission` endpoint and backend code

Signed-off-by: Lenin Alevski <alevsk.8772@gmail.com>

restapi/user_session.go

@@ -148,10 +148,9 @@ func getSessionResponse(session *models.Principal) (*models.SessionResponse, *mo
 	}
 
 	defaultActions := policy.IsAllowedActions("", "", conditionValues)
-	consoleResourceName := "console-ui"
 
 	permissions := map[string]minioIAMPolicy.ActionSet{
-		consoleResourceName: defaultActions,
+		ConsoleResourceName: defaultActions,
 	}
 	deniedActions := map[string]minioIAMPolicy.ActionSet{}
 	for _, statement := range policy.Statements {