Remove "running under some shell"

follow Perl-Toolchain-Gang/ExtUtils-MakeMaker#114

Author: skaji

Changes

@@ -7,6 +7,8 @@ Revision history for Perl extension Module::Build.
 
   - Allow Devel::Cover usage with TAP::Harness [Philipp Gortan]
 
+  - Remove "running under some shell" [Shoichi Kaji]
+
 0.4214 - Fri Jun 12 00:25:00 CEST 2015
 
   - Released 0.42_13 as 0.4214

lib/Module/Build/Base.pm

@@ -3079,13 +3079,6 @@ sub fix_shebang_line { # Adapted from fixin() in ExtUtils::MM_Unix 1.35
     my $shb = '';
     $shb .= $c->get('sharpbang')."$interpreter $arg\n" if $does_shbang;
 
-    # I'm not smart enough to know the ramifications of changing the
-    # embedded newlines here to \n, so I leave 'em in.
-    $shb .= qq{
-eval 'exec $interpreter $arg -S \$0 \${1+"\$\@"}'
-    if 0; # not running under some shell
-} unless $self->is_windowsish; # this won't work on win32, so don't
-
     open(my $FIXOUT, '>', "$file.new")
       or die "Can't create new $file: $!\n";