In C++20 the removed operators are available via operator rewriting and
implicit constructors, providing them leads to ambiguity.

diff --git a/include/swift/SIL/SILValue.h b/include/swift/SIL/SILValue.h
index 378ca039c7e..37c119c50c1 100644
--- a/include/swift/SIL/SILValue.h
+++ b/include/swift/SIL/SILValue.h
@@ -271,16 +271,6 @@ struct ValueOwnershipKind {

   explicit operator bool() const { return value != OwnershipKind::Any; }

-  bool operator==(ValueOwnershipKind other) const {
-    return value == other.value;
-  }
-  bool operator!=(ValueOwnershipKind other) const {
-    return !(value == other.value);
-  }
-
-  bool operator==(innerty other) const { return value == other; }
-  bool operator!=(innerty other) const { return !(value == other); }
-
   /// We merge by moving down the lattice.
   ValueOwnershipKind merge(ValueOwnershipKind rhs) const {
     return value.meet(rhs.value);