runtime(netrw): correct wrong version check

The version check introduced with commit edd4ac3e8 has a logic error.
Also it should only trigger when trying to use the netrw plugin and not
always.

fixes: #16541

Signed-off-by: Christian Brabandt <cb@256bit.org>

runtime/pack/dist/opt/netrw/autoload/netrw.vim

@@ -21,6 +21,11 @@ endif
 
 let g:loaded_netrw = "v176"
 
+if !has("patch-9.1.1054") && !has('nvim')
+  echoerr 'netrw needs Vim v9.1.1054'
+  finish
+endif
+
 let s:keepcpo= &cpo
 setl cpo&vim
 "DechoFuncName 1

runtime/plugin/netrwPlugin.vim

@@ -1,10 +1,5 @@
 " Load the netrw package.
 
-if !has("patch-9.1.1054") || !has('nvim')
-  echoerr 'netrw needs vim v9.1.1054'
-  finish
-endif
-
 if &cp || exists("g:loaded_netrw") || exists("g:loaded_netrwPlugin")
   finish
 endif