Remove unneeded use CompilationFailedException.

The constructors of the exception are not intended to be part of the API.

PiperOrigin-RevId: 520249521
Change-Id: I88780edf24d4294c0ee4b27970e796d991716871

src/tools/android/java/com/google/devtools/build/android/r8/DexFileMerger.java

@@ -378,15 +378,15 @@ public static void run(String[] args) throws CompilationFailedException, IOExcep
     }
   }
 
-  public static void main(String[] args) throws CompilationFailedException {
+  public static void main(String[] args) {
     try {
       if (PRINT_ARGS) {
         printArgs(args);
       }
       run(args);
     } catch (CompilationFailedException | IOException e) {
       System.err.println("Merge failed: " + e.getMessage());
-      throw new CompilationFailedException("Merge failed: " + e.getMessage());
+      throw new RuntimeException("Merge failed: " + e.getMessage(), e);
     }
   }