patch 8.0.1200: tests switch the bell off twice

Problem:    Tests switch the bell off twice.
Solution:   Don't set 'belloff' in individual tests. (Christian Brabandt)

src/testdir/test_edit.vim

@@ -3,7 +3,6 @@
 if exists("+t_kD")
   let &t_kD="[3;*~"
 endif
-set belloff=
 
 " Needed for testing basic rightleft: Test_edit_rightleft
 source view_util.vim
@@ -26,7 +25,6 @@ func! Test_edit_01()
   " set for Travis CI?
   "  set nocp noesckeys
   new
-  set belloff=backspace
   " 1) empty buffer
   call assert_equal([''], getline(1,'$'))
   " 2) delete in an empty line
@@ -59,7 +57,6 @@ func! Test_edit_01()
   call cursor(1, 1)
   call feedkeys("A\<del>\<esc>", 'tnix')
   call assert_equal(["abc def", "ghi jkl"], getline(1, 2))
-  set belloff=
   let &bs=_bs
   bw!
 endfunc
@@ -475,13 +472,11 @@ func! Test_edit_00a_CTRL_A()
   new
   call setline(1, repeat([''], 5))
   call cursor(1, 1)
-  set belloff=all
   try
     call feedkeys("A\<NUL>", 'tnix')
   catch /^Vim\%((\a\+)\)\=:E29/
     call assert_true(1, 'E29 error caught')
   endtry
-  set belloff=
   call cursor(1, 1)
   call feedkeys("Afoobar \<esc>", 'tnix')
   call cursor(2, 1)
@@ -510,7 +505,6 @@ endfunc
 
 func! Test_edit_CTRL_G()
   new
-  set belloff=all
   call setline(1, ['foobar', 'foobar', 'foobar'])
   call cursor(2, 4)
   call feedkeys("ioooooooo\<c-g>k\<c-r>.\<esc>", 'tnix')
@@ -524,7 +518,6 @@ func! Test_edit_CTRL_G()
   call assert_equal([0, 3, 7, 0], getpos('.'))
   call feedkeys("i\<c-g>j\<esc>", 'tnix')
   call assert_equal([0, 3, 6, 0], getpos('.'))
-  set belloff=
   bw!
 endfunc
 
@@ -604,7 +597,6 @@ func! Test_edit_CTRL_K()
   %d
   call setline(1, 'A')
   call cursor(1, 1)
-  set belloff=all
   let v:testing = 1
   try
     call feedkeys("A\<c-x>\<c-k>\<esc>", 'tnix')
@@ -612,7 +604,6 @@ func! Test_edit_CTRL_K()
     " error sleeps 2 seconds, when v:testing is not set
     let v:testing = 0
   endtry
-  set belloff=
   call delete('Xdictionary.txt')
 
   if has("multi_byte")
@@ -853,7 +844,6 @@ func! Test_edit_CTRL_T()
   %d
   call setline(1, 'mad')
   call cursor(1, 1)
-  set belloff=all
   let v:testing = 1
   try
     call feedkeys("A\<c-x>\<c-t>\<esc>", 'tnix')
@@ -861,7 +851,6 @@ func! Test_edit_CTRL_T()
     " error sleeps 2 seconds, when v:testing is not set
     let v:testing = 0
   endtry
-  set belloff=
   call assert_equal(['mad'], getline(1, '$'))
   call delete('Xthesaurus')
   bw!
@@ -1033,7 +1022,6 @@ endfunc
 func! Test_edit_LEFT_RIGHT()
   " Left, Shift-Left, Right, Shift-Right
   new
-  set belloff=all
   call setline(1, ['abc def ghi', 'ABC DEF GHI', 'ZZZ YYY XXX'])
   let _ww=&ww
   set ww=
@@ -1075,7 +1063,6 @@ func! Test_edit_LEFT_RIGHT()
   call feedkeys("A\<s-right>\<esc>", 'tnix')
   call assert_equal([0, 3, 1, 0], getpos('.'))
   let &ww = _ww
-  set belloff=
   bw!
 endfunc
 
@@ -1135,7 +1122,6 @@ func! Test_edit_MOUSE()
 endfunc
 
 func! Test_edit_PAGEUP_PAGEDOWN()
-  set belloff=all
   10new
   call setline(1, repeat(['abc def ghi'], 30))
   call cursor(1, 1)
@@ -1231,12 +1217,10 @@ func! Test_edit_PAGEUP_PAGEDOWN()
   call assert_equal([0, 30, 11, 0], getpos('.'))
   call feedkeys("A\<S-Down>\<esc>", 'tnix')
   call assert_equal([0, 30, 11, 0], getpos('.'))
-  set startofline belloff=
   bw!
 endfunc
 
 func! Test_edit_forbidden()
-  set belloff=error,esc
   new
   " 1) edit in the sandbox is not allowed
   call setline(1, 'a')
@@ -1293,7 +1277,6 @@ func! Test_edit_forbidden()
       set norevins nofkmap
     endtry
   endif
-  set belloff=
   bw!
 endfunc