Do not capture the build-time value of $PATH in the 'emacs' executable
since this can noticeably increase the size of the closure of Emacs
with things like GCC being referenced.

--- emacs-28.1/lisp/loadup.el.orig	2022-03-11 08:04:21.000000000 +0000
+++ emacs-28.1/lisp/loadup.el	2022-04-05 10:53:11.567773405 +0000
@@ -530,7 +530,8 @@
                         ((equal dump-mode "dump") "emacs")
                         ((equal dump-mode "bootstrap") "emacs")
                         ((equal dump-mode "pbootstrap") "bootstrap-emacs.pdmp")
-                        (t (error "Unrecognized dump mode %s" dump-mode)))))
+                        (t (error "unrecognized dump mode %s" dump-mode))))
+                            (exec-path nil))
       (when (and (featurep 'native-compile)
                  (equal dump-mode "pdump"))
         ;; Don't enable this before bootstrap is completed, as the