Revert "[asm-cherry-pick] Use MethodWriter to compute maxLocals / maxStack"

This reverts commit 1e70eda.

Author: retronym

src/main/java/scala/tools/asm/MethodWriter.java

@@ -36,7 +36,7 @@
  * @author Eric Bruneton
  * @author Eugene Kuleshov
  */
-public final class MethodWriter extends MethodVisitor {
+final class MethodWriter extends MethodVisitor {
 
   /** Indicates that nothing must be computed. */
   static final int COMPUTE_NOTHING = 0;
@@ -312,17 +312,9 @@ public final class MethodWriter extends MethodVisitor {
   /** The max_stack field of the Code attribute. */
   private int maxStack;
 
-  public int getMaxStack() {
-      return maxStack;
-  }
-
   /** The max_locals field of the Code attribute. */
   private int maxLocals;
 
-  public int getMaxLocals() {
-      return maxLocals;
-  }
-
   /** The 'code' field of the Code attribute. */
   private final ByteVector code = new ByteVector();