[PredicateInfo] Drop redundant PredicateInfo annotation (#165434)

See
#165419 (comment)
for details.

The extra annotation `"; Has predicate info"` does not provide any extra
information and might poison the UTC-generated checks introduced by
#165419.

Author: Camsyn

llvm/lib/Transforms/Utils/PredicateInfo.cpp

@@ -809,7 +809,6 @@ class PredicateInfoAnnotatedWriter : public AssemblyAnnotationWriter {
   void emitInstructionAnnot(const Instruction *I,
                             formatted_raw_ostream &OS) override {
     if (const auto *PI = PredInfo->getPredicateInfoFor(I)) {
-      OS << "; Has predicate info\n";
       if (const auto *PB = dyn_cast<PredicateBranch>(PI)) {
         OS << "; branch predicate info { TrueEdge: " << PB->TrueEdge
            << " Comparison:" << *PB->Condition << " Edge: [";

llvm/test/Transforms/Util/PredicateInfo/unnamed-types.ll

@@ -6,13 +6,11 @@
 ; Check we can use ssa.copy with unnamed types.
 
 ; CHECK-LABEL: bb:
-; CHECK: Has predicate info
 ; CHECK: branch predicate info { TrueEdge: 1 Comparison:  %cmp1 = icmp ne ptr %arg, null Edge: [label %bb,label %bb1], RenamedOp: %arg }
 ; CHECK-NEXT:  %arg.0 = bitcast ptr %arg to ptr
 
 ; CHECK-LABEL: bb1:
-; CHECK: Has predicate info
-; CHECK-NEXT: branch predicate info { TrueEdge: 0 Comparison:  %cmp2 = icmp ne ptr null, %tmp Edge: [label %bb1,label %bb3], RenamedOp: %tmp }
+; CHECK: branch predicate info { TrueEdge: 0 Comparison:  %cmp2 = icmp ne ptr null, %tmp Edge: [label %bb1,label %bb3], RenamedOp: %tmp }
 ; CHECK-NEXT: %tmp.0 = bitcast ptr %tmp to ptr
 
 define void @f0(ptr %arg, ptr %tmp) {