Remove non-builtins from deftrap

It clutters up deftrap, and a new Perl 6 user might attempt something
like 'stat', and when they get the error message and they try '.stat'
and don't get the result they expect, it could be very confusing.

src/Perl6/Grammar.nqp

@@ -3141,12 +3141,11 @@ grammar Perl6::Grammar is HLL::Grammar does STD {
     }
 
     my %deftrap := nqp::hash(
-        'say', 1, 'print', 1, 'abs', 1, 'alarm', 1, 'chomp', 1, 'chop', 1, 'chr', 1, 'chroot', 1, 'cos', 1,
-        'defined', 1, 'eval', 1, 'exp', 1, 'glob', 1, 'lc', 1, 'log', 1, 'lstat', 1, 'mkdir', 1,
-        'ord', 1, 'readlink', 1, 'readpipe', 1, 'require', 1, 'reverse', 1, 'rmdir', 1, 'sin', 1,
-        'split', 1, 'sqrt', 1, 'stat', 1, 'uc', 1, 'unlink', 1,
-        'WHAT', 2, 'WHICH', 2, 'WHERE', 2, 'HOW', 2, 'WHENCE', 2, 'WHO', 2, 'VAR', 2,
-        'any', 2, 'all', 2, 'none', 2, 'one', 2, 'set', 2, 'bag', 2, 'tclc', 2, 'wordcase', 2,
+        'say', 1, 'print', 1, 'abs', 1, 'chomp', 1, 'chop', 1, 'chr', 1, 'cos', 1,
+        'defined', 1, 'exp', 1, 'lc', 1, 'log', 1, 'mkdir', 1, 'ord', 1, 'reverse', 1,
+        'rmdir', 1, 'sin', 1, 'split', 1, 'sqrt', 1, 'uc', 1, 'unlink', 1, 'WHAT', 2,
+        'WHICH', 2, 'WHERE', 2, 'HOW', 2, 'WHENCE', 2, 'WHO', 2, 'VAR', 2, 'any', 2,
+        'all', 2, 'none', 2, 'one', 2, 'set', 2, 'bag', 2, 'tclc', 2, 'wordcase', 2,
     );
 
     token term:sym<name> {