(GH-908) Fix Double Chocolatey folder for $file

For GH-813 (ae2e857), the double `chocolatey\chocolatey` folder was
removed from `$silentArgs` and `$additionalInstallArgs`, but `$file`
was missed. These changes were originally necessary due to changes in
GH-590 (a9519b5). Ensure that $file is also set properly so it no
longer uses a double chocolatey folder.

src/chocolatey.resources/helpers/functions/Install-ChocolateyInstallPackage.ps1

@@ -202,6 +202,7 @@ Pro / Business supports a single, ubiquitous install directory option.
   # remove \chocolatey\chocolatey\
   $silentArgs = $silentArgs -replace '\\chocolatey\\chocolatey\\', '\chocolatey\'
   $additionalInstallArgs = $additionalInstallArgs -replace '\\chocolatey\\chocolatey\\', '\chocolatey\'
+  $file = $file -replace '\\chocolatey\\chocolatey\\', '\chocolatey\'
 
   $workingDirectory = Get-Location
   try {