Remove broken test

...introduced with 26be5f21 "unotools: don't go
belly-up if temp dir is wrong or empty".  At least Flatpak builds can create a
/not/found/dir directory just fine.

Change-Id: I73115ac99498ac584be77153ef66bba3036392c3
Reviewed-on: https://gerrit.libreoffice.org/47267Tested-by: Jenkins <ci@libreoffice.org>
Reviewed-by: Stephan Bergmann <sbergman@redhat.com>

sal/CppunitTest_sal_osl.mk

@@ -27,7 +27,6 @@ $(eval $(call gb_CppunitTest_add_exception_objects,sal_osl,\
 
 $(eval $(call gb_CppunitTest_use_libraries,sal_osl,\
 	sal \
-	utl \
 ))
 
 # the test uses the library created by Module_DLL

sal/qa/osl/file/osl_old_test_file.cxx

@@ -32,9 +32,6 @@
 #include <cppunit/extensions/HelperMacros.h>
 #include <cppunit/plugin/TestPlugIn.h>
 
-#include <unotools/tempfile.hxx>
-
-
 namespace osl_test_file
 {
 
@@ -140,30 +137,8 @@ void oldtestfile::test_file_004()
 #endif
 }
 
-class TempFileTest : public CppUnit::TestFixture
-{
-
-public:
-    TempFileTest() {}
-
-    void SetTempNameBaseDirectory()
-    {   // only testing: of not found the directory
-        OUString path = utl::TempFile::SetTempNameBaseDirectory("file:///not/found/dir");
-
-        CPPUNIT_ASSERT_MESSAGE("SetTempNameBaseDirectory must give a empty string back",
-            path.isEmpty());
-    }
-
-
-    CPPUNIT_TEST_SUITE(TempFileTest);
-    CPPUNIT_TEST(SetTempNameBaseDirectory);
-    CPPUNIT_TEST_SUITE_END();
-};
-
-
 } // namespace osl_test_file
 
 CPPUNIT_TEST_SUITE_REGISTRATION( osl_test_file::oldtestfile);
-CPPUNIT_TEST_SUITE_REGISTRATION( osl_test_file::TempFileTest);
 
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