gnu: Reference the inherited inputs values.

This commit was made by running this command:

  sed -e's/modify-inputs (package-\([a-z-]*\)inputs [a-zA-Z0-9-]\+)/modify-inputs \1inputs/g' -i gnu/packages/*.scm

… and then reverting individual hunks where the change would trigger unbound
variable warnings or other issues (such as ‘native-inputs’ is bound in the
body of the ‘inputs’ field, but it refers to the ‘native-inputs’ thunk defined
just above).

Change-Id: I6d94819f2809313fa1fbefc61897502ee7d66fab

gnu/packages/password-utils.scm

@@ -1307,7 +1307,7 @@ using password-store through rofi interface:
                               '("pass" "pwgen" "rofi" "wl-copy" "wtype")))))
                    (list "addpass" "rofi-pass")))))))))
     (inputs
-     (modify-inputs (package-inputs rofi-pass)
+     (modify-inputs inputs
        (replace "xclip" wl-clipboard)
        (replace "xdotool" wtype)
        (delete "xset")))