Remove redundant "Given a new tmpdir" step

With the (tmpdir) replacement we'll get a temporary directory no matter
what, so this is unnecessary.

tests/end2end/features/misc.feature

@@ -340,7 +340,6 @@ Feature: Various utility commands.
         Then no crash should happen
 
     Scenario: print pdf
-        Given a new tmpdir
         When I open data/hello.txt
         And I run :print --pdf (tmpdir)/hello.pdf
         And I wait for "Print to file: *" in the log or skip the test

tests/end2end/features/test_misc_bdd.py

@@ -75,11 +75,6 @@ def check_cookie(quteproc, name, value):
     assert data['cookies'][name] == value
 
 
-@bdd.given(bdd.parsers.parse('a new tmpdir'))
-def tmpdir(tmpdir_factory):
-    return tmpdir_factory.mktemp('tmpdir')
-
-
 @bdd.then(bdd.parsers.parse('the file {filename} should exist in the tmpdir'))
 def file_exists(quteproc, tmpdir, filename):
     path = tmpdir / filename