Removed unnecessary code + Minor improvements

AutomationManager.ps1

@@ -196,7 +196,7 @@ try
             }
         }
         Set-Variable -Name UseAzureResourceManager -Value $true -Scope Global
-        $SelectedSubscription = RetryOperation -operation { Select-AzureRmSubscription -SubscriptionId $AzureSetup.SubscriptionID } -maxRetryCount 5 -description "Selecting subscription..."
+        $SelectedSubscription = Select-AzureRmSubscription -SubscriptionId $AzureSetup.SubscriptionID
         $subIDSplitted = ($SelectedSubscription.Subscription.SubscriptionId).Split("-")
         $userIDSplitted = ($SelectedSubscription.Account.Id).Split("-")
         LogMsg "SubscriptionName       : $($SelectedSubscription.Subscription.Name)"

Libraries/CommonFunctions.psm1

@@ -2473,7 +2473,7 @@ Function PerformIOTestOnDisk($testVMObject, [string]$attachedDisk, [string]$disk
 	return $retValue
 }
 
-Function RetryOperation($operation, $description, $expectResult=$null, $maxRetryCount=10, $retryInterval=10, [switch]$NoLogsPlease)
+Function RetryOperation($operation, $description, $expectResult=$null, $maxRetryCount=10, $retryInterval=10, [switch]$NoLogsPlease, [switch]$ThrowExceptionOnFailure)
 {
 	$retryCount = 1
 	
@@ -2520,12 +2520,19 @@ Function RetryOperation($operation, $description, $expectResult=$null, $maxRetry
 		}
 		if ($retryCount -ge $maxRetryCount)
 		{
-			LogError "Opearation Failed." 
+			LogError "Command '$operation' Failed." 
 			break;
 		}
 	} while ($True)
 	
-	return $null
+	if ($ThrowExceptionOnFailure)
+	{
+		ThrowException -Exception "Command '$operation' Failed."
+	}
+	else 
+	{
+		return $null	
+	}
 }
 
 Function GetFilePathsFromLinuxFolder ([string]$folderToSearch, $IpAddress, $SSHPort, $username, $password, $maxRetryCount=20, [string]$expectedFiles)

RunTests.ps1

@@ -383,32 +383,6 @@ try
     
     #endregion
 
-    #region Download necessary tools.
-    mkdir -Path .\tools -ErrorAction SilentlyContinue | Out-Null
-    Import-Module BitsTransfer  
-    if (!( Test-Path -Path .\tools\7za.exe ))
-    {
-        Write-Host "Downloading 7za.exe"
-        $out = Start-BitsTransfer -Source "https://github.com/iamshital/azure-linux-automation-support-files/raw/master/tools/7za.exe" | Out-Null
-    }
-    if (!( Test-Path -Path .\tools\dos2unix.exe ))
-    {
-        Write-Host "Downloading dos2unix.exe"
-        $out = Start-BitsTransfer -Source "https://github.com/iamshital/azure-linux-automation-support-files/raw/master/tools/dos2unix.exe" | Out-Null
-    }
-    if (!( Test-Path -Path .\tools\plink.exe ))
-    {
-        Write-Host "Downloading plink.exe"
-        $out = Start-BitsTransfer -Source "https://github.com/iamshital/azure-linux-automation-support-files/raw/master/tools/plink.exe" | Out-Null
-    }
-    if (!( Test-Path -Path .\tools\pscp.exe ))
-    {
-        Write-Host "Downloading pscp.exe"
-        $out = Start-BitsTransfer -Source "https://github.com/iamshital/azure-linux-automation-support-files/raw/master/tools/pscp.exe"  | Out-Null
-    }
-    Move-Item -Path "*.exe" -Destination .\tools -ErrorAction SilentlyContinue -Force
-    #endregion
-
     #region Prepare execution command
 
     $command = ".\AutomationManager.ps1 -xmlConfigFile '$xmlFile' -cycleName 'TC-$shortRandomNumber' -RGIdentifier '$RGIdentifier' -runtests -UseAzureResourceManager"