I have tried of the different types of suggestions from this post, but when you combine the right resolutions together, that product will be removed. Here is the solution:
DYNAMICS ONLINE SERVICES APPLICATION (Product 6499) REMOVAL STEPS
Product 6499 is the new Dynamics Online Services module that has been added in Microsoft Dynamics GP 10.0 SP5 and Dynamics GP 2010 SP1.You can try the following in your test first:
1. Make backups of all DB
2. Run the scripts below
Delete DYNAMICS..DU000030 where PRODID = 6499
Delete DYNAMICS..DU000020 where PRODID = 6499
Update DYNAMICS..DB_Upgrade set db_verOldMajor = 0, db_verOldBuild = 0, db_status = 0 where PRODID = 6499
4. Under the Microsoft Dynamics\GP folder, locate and delete the DO6499.dic dictionary file.
5. Remove all references of this product from the application launch file, DYNAMICS.SET.
6499
Dynamics Online Services
:C:Program Files/Microsoft Dynamics/GP/DO6499.DIC
:C:Program Files/Microsoft Dynamics/GP/Data/DO6499F.DIC
:C:Program Files/Microsoft Dynamics/GP/Data/DO6499R.DIC
NOTE: Don't forget to decrease the number of products by 1 in the DYNAMICS.SET file. Usually, this is the first entry in the launch file.
6. Locate the AddIns folder and delete the Microsoft.Dynamics.GP.OnlineServices.dll assembly file
7. Also remove the Application.DynamicsOnlineServices.dll from the GP installation folder
8. Launch GP Utilities directly. Do not reinitialize by logging into Dynamics GP before launching Utilities.
Credit to: Jacob Horwath