Move deobfuscation methods to their own files

src/main/java/info/sigterm/deob/deobfuscators/UnusedBlocks.java

@@ -0,0 +1,43 @@
+package info.sigterm.deob.deobfuscators;
+
+import info.sigterm.deob.ClassFile;
+import info.sigterm.deob.ClassGroup;
+import info.sigterm.deob.Method;
+import info.sigterm.deob.attributes.code.Block;
+import info.sigterm.deob.attributes.code.Instructions;
+
+import java.util.ArrayList;
+
+public class UnusedBlocks
+{
+	public void run(ClassGroup group)
+	{
+		int i = 0;
+		for (ClassFile cf : group.getClasses())
+		{
+			for (Method m : new ArrayList<>(cf.getMethods().getMethods()))
+			{
+				if (m.getCode() == null)
+					continue;
+				
+				Instructions ins = m.getCode().getInstructions();
+				ins.buildBlocks();
+				
+				int count = 0;
+				for (Block b : new ArrayList<>(ins.getBlocks()))
+				{
+					// first block is the entrypoint, so its always used
+					if (count++ == 0)
+						continue;
+					
+					if (b.begin.from.isEmpty() && b.begin.exce.isEmpty())
+					{
+						ins.remove(b);
+						++i;
+					}
+				}
+			}
+		}
+		System.out.println("Removed " + i + " unused blocks");
+	}
+}