toke.c: Rmv useless code

This code is unreachable because the code above makes sure that the
variable can't be larger than PL_bufend, and the code is only executed
if it is larger.

Author: khwilliamson

toke.c

@@ -5607,10 +5607,6 @@ Perl_yylex(pTHX)
                 d++;
             if (d < PL_bufend)
                 d++;
-            else if (d > PL_bufend)
-                /* Found by Ilya: feed random input to Perl. */
-                Perl_croak(aTHX_ "panic: input overflow, %p > %p",
-                           d, PL_bufend);
             s = d;
             if (in_comment && d == PL_bufend
                 && PL_lex_state == LEX_INTERPNORMAL
@@ -5633,9 +5629,6 @@ Perl_yylex(pTHX)
                     if (s < PL_bufend)
                         incline(s);
                 }
-            else if (s > PL_bufend)
-                /* Found by Ilya: feed random input to Perl. */
-                Perl_croak(aTHX_ "panic: input overflow");
 	}
 	goto retry;
     case '-':