patch 9.0.1514: test waits unnecessarily long before checking screendump

Problem:    Test waits unnecessarily long before checking screendump.
Solution:   Remove TermWait() call.

src/testdir/test_scroll_opt.vim

@@ -604,7 +604,6 @@ func Test_smoothscroll_zero_width()
   END
   call writefile(lines, 'XSmoothScrollZero', 'D')
   let buf = RunVimInTerminal('-u NONE -i NONE -n -m -X -Z -e -s -S XSmoothScrollZero', #{rows: 6, cols: 60, wait_for_ruler: 0})
-  call TermWait(buf, 3000)
   call VerifyScreenDump(buf, 'Test_smoothscroll_zero_1', {})
 
   call term_sendkeys(buf, ":sil norm \<C-V>\<C-W>\<C-V>\<C-N>\<CR>")

src/version.c

@@ -695,6 +695,8 @@ static char *(features[]) =
 
 static int included_patches[] =
 {   /* Add new patch number below this line */
+/**/
+    1514,
 /**/
     1513,
 /**/