Rip out ImmutableNullComparison:EmitEmptyFixes.

PiperOrigin-RevId: 617789741

core/src/main/java/com/google/errorprone/bugpatterns/ImpossibleNullComparison.java

@@ -144,14 +144,12 @@ private static boolean isNull(ExpressionTree tree) {
               "com.google.protobuf.GeneratedMessageLite", "com.google.protobuf.GeneratedMessage");
 
   private final boolean matchTestAssertions;
-  private final boolean emitEmptyFixes;
   private final boolean checkPrimitives;
 
   @Inject
   ImpossibleNullComparison(ErrorProneFlags flags) {
     this.matchTestAssertions =
         flags.getBoolean("ProtoFieldNullComparison:MatchTestAssertions").orElse(true);
-    this.emitEmptyFixes = flags.getBoolean("ImmutableNullComparison:EmitEmptyFixes").orElse(true);
     this.checkPrimitives = flags.getBoolean("ImmutableNullComparison:CheckPrimitives").orElse(true);
   }
 
@@ -251,9 +249,7 @@ public Void visitMethodInvocation(MethodInvocationTree node, Void unused) {
         return super.visitMethodInvocation(node, null);
       }
       getFixer(argument, subState)
-          .map(f -> problemType.fix(f, node, subState))
-          .filter(f -> emitEmptyFixes || !f.isEmpty())
-          .map(f -> describeMatch(node, f))
+          .map(f -> describeMatch(node, problemType.fix(f, node, subState)))
           .ifPresent(state::reportMatch);
 
       return super.visitMethodInvocation(node, null);