Method context was actually important because its copied between frames

src/main/java/net/runelite/asm/execution/Frame.java

@@ -37,9 +37,6 @@ public class Frame
 
 		stack = new Stack(code.getMaxStack());
 		variables = new Variables(code.getMaxLocals());
-		// don't cache method contexts per execution
-		// need to allow the same method to execute multiple times
-		// when called from multiple places to allow graph building //XXX there no longer is a graph
 		ctx = new MethodContext(execution);
 		nonStatic = method;
 	}

src/main/java/net/runelite/asm/execution/MethodContext.java

@@ -1,8 +1,6 @@
 package net.runelite.asm.execution;
 
-import java.util.ArrayList;
 import java.util.Collection;
-import java.util.List;
 import net.runelite.asm.attributes.code.Instruction;
 import org.apache.commons.collections4.map.MultiValueMap;