Add this to settings.json:
// Whether git is enabled.
"git.enabled": false,
Some other commands related to Git execution:
// Path and filename of the git executable, e.g. `C:\Program Files\Git\bin\git.exe` (Windows).
"git.path": null,
// When enabled, commits will automatically be fetched from the default remote of the current Git repository.
"git.autofetch": false,