Remove unecessary hard-coding of EDITOR=':' VISUAL=':' in some test suites.

They are already set and exoprted by sourcing ./test-lib.sh
in all test scripts.

Signed-off-by: Kristian Høgsberg <krh@redhat.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>

t/t3501-revert-cherry-pick.sh

@@ -44,7 +44,7 @@ test_expect_success setup '
 test_expect_success 'cherry-pick after renaming branch' '
 
 	git checkout rename2 &&
-	EDITOR=: VISUAL=: git cherry-pick added &&
+	git cherry-pick added &&
 	test -f opos &&
 	grep "Add extra line at the end" opos
 
@@ -53,7 +53,7 @@ test_expect_success 'cherry-pick after renaming branch' '
 test_expect_success 'revert after renaming branch' '
 
 	git checkout rename1 &&
-	EDITOR=: VISUAL=: git revert added &&
+	git revert added &&
 	test -f spoo &&
 	! grep "Add extra line at the end" spoo
 

t/t3901-i18n-patch.sh

@@ -154,7 +154,7 @@ test_expect_success 'cherry-pick(U/U)' '
 	git reset --hard master &&
 	git cherry-pick side^ &&
 	git cherry-pick side &&
-	EDITOR=: VISUAL=: git revert HEAD &&
+	git revert HEAD &&
 
 	check_encoding 3
 '
@@ -169,7 +169,7 @@ test_expect_success 'cherry-pick(L/L)' '
 	git reset --hard master &&
 	git cherry-pick side^ &&
 	git cherry-pick side &&
-	EDITOR=: VISUAL=: git revert HEAD &&
+	git revert HEAD &&
 
 	check_encoding 3 8859
 '
@@ -184,7 +184,7 @@ test_expect_success 'cherry-pick(U/L)' '
 	git reset --hard master &&
 	git cherry-pick side^ &&
 	git cherry-pick side &&
-	EDITOR=: VISUAL=: git revert HEAD &&
+	git revert HEAD &&
 
 	check_encoding 3
 '
@@ -200,7 +200,7 @@ test_expect_success 'cherry-pick(L/U)' '
 	git reset --hard master &&
 	git cherry-pick side^ &&
 	git cherry-pick side &&
-	EDITOR=: VISUAL=: git revert HEAD &&
+	git revert HEAD &&
 
 	check_encoding 3 8859
 '