Revert "Inline and optimize interface calls."

Went ahead too quickly.

This reverts commit d9faceaa8da92f4a56c2907de949081bd42faf79.

Change-Id: I1610deaf89b38037cf2786d135a59c48b10ced0c
diff --git a/test/548-checker-inlining-and-dce/src/Main.java b/test/548-checker-inlining-and-dce/src/Main.java
index bf64c3b..38fdcc0 100644
--- a/test/548-checker-inlining-and-dce/src/Main.java
+++ b/test/548-checker-inlining-and-dce/src/Main.java
@@ -16,19 +16,17 @@
 
 public class Main {
 
-  static boolean doThrow = false;
-
   private void inlinedForNull(Iterable it) {
     if (it != null) {
-      // We're not inlining throw at the moment.
-      if (doThrow) { throw new Error(""); }
+      // We're not inlining invoke-interface at the moment.
+      it.iterator();
     }
   }
 
   private void inlinedForFalse(boolean value, Iterable it) {
     if (value) {
-      // We're not inlining throw at the moment.
-      if (doThrow) { throw new Error(""); }
+      // We're not inlining invoke-interface at the moment.
+      it.iterator();
     }
   }