vim-patch:8.2.2627: no need to check for BSD after checking for not root

Problem:    No need to check for BSD after checking for not root.
Solution:   Remove CheckNotBSD. (Ozaki Kiichi, closes vim/vim#7989)

4355894869

src/nvim/testdir/check.vim

@@ -90,15 +90,6 @@ func CheckUnix()
   endif
 endfunc
 
-" Command to check for not running on a BSD system.
-" TODO: using this checks should not be needed
-command CheckNotBSD call CheckNotBSD()
-func CheckNotBSD()
-  if has('bsd')
-    throw 'Skipped: does not work on BSD'
-  endif
-endfunc
-
 " Command to check that making screendumps is supported.
 " Caller must source screendump.vim
 command CheckScreendump call CheckScreendump()

src/nvim/testdir/test_excmd.vim

@@ -507,7 +507,6 @@ endfunc
 
 func Test_redir_cmd_readonly()
   CheckNotRoot
-  CheckNotBSD
 
   " Redirecting to a read-only file
   call writefile([], 'Xfile')

src/nvim/testdir/test_help.vim

@@ -124,8 +124,6 @@ endfunc
 func Test_helptag_cmd_readonly()
   CheckUnix
   CheckNotRoot
-  " The following tests fail on FreeBSD for some reason
-  CheckNotBSD
 
   " Read-only tags file
   call mkdir('Xdir/doc', 'p')