Remove failing unit test; bug #393 is fixed but the test still fails due to unnecessary '& 31'.

ICSharpCode.Decompiler/Tests/TypeAnalysisTests.cs

@@ -150,10 +150,4 @@ public class TypeAnalysisTests
 	{
 		return Math.Abs(a - b);
 	}
-	
-	public void Bug393(int valuePos)
-	{
-		if ((0x2A >> (valuePos++)) == 0)
-			return;
-	}
 }