test: Migrate legacy test 107

This test depends on terminal size to work correctly. After migration this
requirement is removed.

src/nvim/testdir/test107.in

@@ -1,38 +0,0 @@
-Tests for adjusting window and contents     vim: set ft=vim :
-
-STARTTEST
-:so small.vim
-:new
-:call setline(1, range(1,256))
-:let r=[]
-:func! GetScreenStr(row)
-:   let str = ""
-:   for c in range(1,3)
-:       let str .= nr2char(screenchar(a:row, c))
-:   endfor
-:   return str
-:endfunc
-:
-:exe ":norm! \<C-W>t\<C-W>=1Gzt\<C-W>w\<C-W>+"
-:let s3=GetScreenStr(1)
-:wincmd p
-:call add(r, [line("w0"), s3])
-:
-:exe ":norm! \<C-W>t\<C-W>=50Gzt\<C-W>w\<C-W>+"
-:let s3=GetScreenStr(1)
-:wincmd p
-:call add(r, [line("w0"), s3])
-:
-:exe ":norm! \<C-W>t\<C-W>=59Gzt\<C-W>w\<C-W>+"
-:let s3=GetScreenStr(1)
-::wincmd p
-:call add(r, [line("w0"), s3])
-:
-:bwipeout!
-:$put=r
-:call garbagecollect(1)
-:"
-:/^start:/,$wq! test.out
-ENDTEST
-
-start:

src/nvim/testdir/test107.ok

@@ -1,4 +0,0 @@
-start:
-[1, '1  ']
-[50, '50 ']
-[59, '59 ']