test-ob.el: Remove duplicate test

testing/lisp/test-ob.el

@@ -1178,30 +1178,6 @@ echo \"test\"
       (should (re-search-forward "=\"x\"=" nil t))
       (forward-line))))
 
-(ert-deftest test-ob/commented-last-block-line-with-var ()
-  (org-test-with-temp-text-in-file "
-#+begin_src emacs-lisp :var a=1
-;;
-#+end_src"
-    (org-babel-next-src-block)
-    (org-babel-execute-maybe)
-    (re-search-forward "\\#\\+results:" nil t)
-    (forward-line)
-    (should (string=
-	     ""
-	     (buffer-substring-no-properties (point-at-bol) (point-at-eol)))))
-  (org-test-with-temp-text-in-file "
-#+begin_src emacs-lisp :var a=2
-2;;
-#+end_src"
-    (org-babel-next-src-block)
-    (org-babel-execute-maybe)
-    (re-search-forward "\\#\\+results:" nil t)
-    (forward-line)
-    (should (string=
-	     ": 2"
-	     (buffer-substring-no-properties (point-at-bol) (point-at-eol))))))
-
 (defun test-ob-verify-result-and-removed-result (result buffer-text)
   "Test helper function to test `org-babel-remove-result'.
 A temp buffer is populated with BUFFER-TEXT, the first block is executed,