According to Microsoft, "INF files provide the ability to create customized software installation instructions, which include registry entries and destination directories. By pointing to the URLs of files to download, an INF file provides instructions that Internet Explorer uses to install your software components. The INF file specifies the files that need to be downloaded and set up for the component to run. INF files can provide limited platform independence and specify limited software dependencies."
Source: Using INF Files
It looks like this is a protected file and removing it could cause system problems. Is there a particular reason why you're trying to remove it? If you're absolutely sure you have to remove it I'd suggest you make a restore point just in case something goes wrong. System Restore Point - Create System Restore
This Microsoft article on how to remove INF files may help. How to remove .inf files from the system