Fix Clear-ProxySettings test

Modified the Clear-ProxySettings function to specifically check for
DefaultConnectionSettings property rather than checking for any
properties. This is required because other tests in the file create
proxy settings.

Author: Rajath Agasthya

modules/BOSH.Utils/BOSH.Utils.Tests.ps1

@@ -427,8 +427,8 @@ Describe "BOSH.Utils" {
 
             $item = Get-Item $regKeyConnections
 
-            #DefaultConnectionSettings is actually added to a "Property" object
-            $item.Property | Should -Be $null
+            #DefaultConnectionSettings should be removed
+            $item.Property -contains "DefaultConnectionSettings" | Should -Be $false
 
             #We need to pipe the netsh command through Out-String in order to convert its output into a proper string
             $output = (netsh winhttp show proxy) | Out-String

modules/BOSH.Utils/BOSH.Utils.psm1

@@ -236,9 +236,9 @@ function Clear-ProxySettings
 {
     $regKeyConnections = "HKCU:\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Connections"
     $item = Get-Item $regKeyConnections
-    if ($item.Property)
+    if ($item.Property -contains "DefaultConnectionSettings")
     {
-        Remove-ItemProperty "HKCU:\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Connections" -Name "DefaultConnectionSettings"
+        Remove-ItemProperty -Path $regKeyConnections -Name "DefaultConnectionSettings"
 
         #We need to pipe the command through Out-String in order to convert its output into a proper string
         $reset_proxy = (& cmd.exe /c "netsh winhttp reset proxy") | Out-String