Removed unused functions and imports

src/main/java/chocopy/pa3/CodeGenImpl.java

@@ -1,9 +1,7 @@
 package chocopy.pa3;
 
 import java.util.ArrayList;
-import java.util.HashMap;
 import java.util.List;
-import java.util.Map;
 import java.util.Stack;
 
 import chocopy.common.analysis.*;
@@ -220,20 +218,10 @@ public class CodeGenImpl extends CodeGenBase
             registerAvilMap[handle] = true;
         }
                
-        private int getParamLocationOffset(int index, int paramSize) 
-        {
-        		return (paramSize - index - 1) * wordSize;
-        }
-        
         private int getLocalVarLocationOffset(int index, int paramSize) {
     			return - (index - paramSize + 1) * wordSize;
         }
         
-        private int getStaticLinkOffset(int paramSize) 
-        {
-    			return paramSize * wordSize;
-        }
-        
         /**
          * An analyzer for the function described by FUNCINFO0, which is null for the
          * top level.