Remove deprecated canAccessRoom method still present in v7.4.0

[blackmamba1231]

Description

The canAccessRoom Meteor method in server/methods/canAccessRoom.ts is marked as deprecated with a warning message indicating it will be removed after version 5.0. This method is only enabled when the environment variable ALLOW_CANACCESSROOM_METHOD is set to "yes" or "true".

Expected Behavior

The deprecated method should be removed, and any code relying on it should use the canAccessRoomAsync function from the Authorization service directly.

Current Behavior

The deprecated method is still available when the environment variable is set, displaying a warning message:
console.warn('Method canAccessRoom is deprecated and will be removed after version 5.0');

Steps to Reproduce

1. Set environment variable ALLOW_CANACCESSROOM_METHOD=true
2. Start Rocket.Chat server
3. Check server logs for the deprecation warning

Relevant Code

// server/methods/canAccessRoom.ts
if (['yes', 'true'].includes(String(process.env.ALLOW_CANACCESSROOM_METHOD).toLowerCase())) {
  console.warn('Method canAccessRoom is deprecated and will be removed after version 5.0');
  Meteor.methods<ServerMethods>({
    async canAccessRoom(rid, userId, extraData) {
      // Method implementation
    }
  });
}

[blackmamba1231]

i'd like to work on fixing it

[blackmamba1231]

The method was scheduled for removal after v5.0
It's still present in v7.4.0
This represents technical debt that should be addressed