static-nix-shell: remove unused extraMakeWrapperArgs argument

it wasn't even implemented right

pkgs/by-name/static-nix-shell/package.nix

@@ -57,7 +57,6 @@ in rec {
     pkgExprs,
     srcPath ? pname,
     srcRoot ? null,
-    extraMakeWrapperArgs ? [],
     ...
   }@attrs:
   let
@@ -150,10 +149,9 @@ in rec {
         # ensure that there weren't some trailing deps we *didn't* substitute
         grep '^# nix deps evaluated statically$' $out/bin/${srcPath} || die 'trailing characters in nix-shell directive for ${srcPath}'
 
-        if [[ ''${#makeWrapperArgs[@]} != 0 || ''${#extraMakeWrapperArgs[@]} ]]; then
+        if [[ ''${#makeWrapperArgs[@]} != 0 ]]; then
           wrapProgram $out/bin/${srcPath} \
-            "''${makeWrapperArgs[@]}" \
-            "''${extraMakeWrapperArgs[@]}"
+            "''${makeWrapperArgs[@]}"
         fi
 
         runHook postInstall
@@ -173,7 +171,6 @@ in rec {
         mainProgram = srcPath;
       } // (attrs.meta or {});
     } // extraDerivArgs // (removeAttrs attrs [
-      "extraMakeWrapperArgs"
       "interpreter"
       "interpreterName"
       "meta"