glsl/opt_algebraic: Drop scalar all_eq/any_neq -> eq/neq opt.

No change in r300 or freedreno shader-db.

Acked-by: Timothy Arceri <tarceri@itsqueeze.com>
Reviewed-by: Marek Olšák <marek.olsak@amd.com>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/21475>

src/compiler/glsl/opt_algebraic.cpp

@@ -482,16 +482,6 @@ ir_algebraic_visitor::handle_expression(ir_expression *ir)
       }
       break;
 
-   case ir_binop_all_equal:
-   case ir_binop_any_nequal:
-      if (ir->operands[0]->type->is_scalar() &&
-          ir->operands[1]->type->is_scalar())
-         return new(mem_ctx) ir_expression(ir->operation == ir_binop_all_equal
-                                           ? ir_binop_equal : ir_binop_nequal,
-                                           ir->operands[0],
-                                           ir->operands[1]);
-      break;
-
    case ir_binop_min:
    case ir_binop_max:
       if (!ir->type->is_float())