This guide will walk you through the process of removing your troycable.net email account from the Gmail Application on an Apple iPhone.
If you are using an iPad, please use the following guide because the instructions are a little different: Removing Your Account from Gmail App on iPads
When you are done removing your account from the Gmail Application, please use the following guide to set up your Apple Mail App email with the required settings: Updating your email account with your iPhone or iPad
Step 1. Open the Gmail Application
Step 2. In the top left, click on the menu button (three horizontal lines)
Step 3. In the Menu page, click on the Email account (with picture and email address) in the top left
Step 4. In the Accounts pane ensure your account is highlighted, then click on Remove.