Fix Issue 19902 - hasElaborateCopyConstructor doesn't know about copy constructors

Author: edi33416

src/core/internal/traits.d

@@ -287,24 +287,6 @@ template hasElaborateCopyConstructor(S)
     }
 }
 
-template hasElaborateAssign(S)
-{
-    static if (__traits(isStaticArray, S) && S.length)
-    {
-        enum bool hasElaborateAssign = hasElaborateAssign!(typeof(S.init[0]));
-    }
-    else static if (is(S == struct))
-    {
-        enum hasElaborateAssign = is(typeof(S.init.opAssign(rvalueOf!S))) ||
-                                  is(typeof(S.init.opAssign(lvalueOf!S))) ||
-                                  anySatisfy!(.hasElaborateAssign, FieldTypeTuple!S);
-    }
-    else
-    {
-        enum bool hasElaborateAssign = false;
-    }
-}
-
 @safe unittest
 {
     static struct S