fix some file extensions

Task/Factorial/VBScript/factorial.vbscript

@@ -1,41 +0,0 @@
-Dim lookupTable(170), returnTable(170), currentPosition, input
-currentPosition = 0
-
-Do While True
-	input = InputBox("Please type a number (-1 to quit):")
-	MsgBox "The factorial of " & input & " is " & factorial(CDbl(input))
-Loop
-
-Function factorial (x)
-	If x = -1 Then
-		WScript.Quit 0
-	End If
-	Dim temp
-	temp = lookup(x)
-	If x <= 1 Then
-		factorial = 1
-	ElseIf temp <> 0 Then
-		factorial = temp
-	Else
-		temp = factorial(x - 1) * x
-		store x, temp
-		factorial = temp
-	End If
-End Function
-
-Function lookup (x)
-	Dim i
-	For i = 0 To currentPosition - 1
-		If lookupTable(i) = x Then
-			lookup = returnTable(i)
-			Exit Function
-		End If
-	Next
-	lookup = 0
-End Function
-
-Function store (x, y)
-	lookupTable(currentPosition) = x
-	returnTable(currentPosition) = y
-	currentPosition = currentPosition + 1
-End Function