Remove TODO warning from parse_keyword_subsignature in XS-APItest

This was useful during early development of the test but it's too
fragile and prints far too easily at other times, we might as well
remove it.

  #23679 (comment)

Author: leonerd

ext/XS-APItest/APItest.pm

@@ -4,7 +4,7 @@ use strict;
 use warnings;
 use Carp;
 
-our $VERSION = '1.45';
+our $VERSION = '1.46';
 
 require XSLoader;
 

ext/XS-APItest/APItest.xs

@@ -1221,11 +1221,6 @@ static OP *THX_parse_keyword_subsignature(pTHX)
                 retop = op_append_list(OP_LIST, retop, newSVOP(OP_CONST, 0, retsv));
                 break;
             }
-            case OP_PARAMTEST:
-                break;
-            default:
-                fprintf(stderr, "TODO: examine kid %p (optype=%s)\n", kid, PL_op_name[kid->op_type]);
-                break;
         }
     }