[ConstraintSystem] Don't increase SK_Fix score when looking through holes

`SK_Fix` was used to indicate that solver has encountered a hole
along the current path but since there is `SK_Hole` now, increasing
`SK_Fix` no longer makes sense.

lib/Sema/CSSimplify.cpp

@@ -5073,7 +5073,6 @@ ConstraintSystem::SolutionKind ConstraintSystem::simplifyConformsToConstraint(
     // func foo<T: BinaryInteger>(_: T) {}
     // foo(Foo.bar) <- if `Foo` doesn't have `bar` there is
     //                 no reason to complain about missing conformance.
-    increaseScore(SK_Fix);
     return SolutionKind::Solved;
   }
 
@@ -6466,7 +6465,6 @@ ConstraintSystem::SolutionKind ConstraintSystem::simplifyMemberConstraint(
                baseObjTy->isHole()) {
       // If base type is a "hole" there is no reason to record any
       // more "member not found" fixes for chained member references.
-      increaseScore(SK_Fix);
       markMemberTypeAsPotentialHole(memberTy);
       return SolutionKind::Solved;
     }