Fix build for unit test

If none of GIT_OPENSSL, GIT_WINHTTP or GIT_SECURE_TRANSPORT
is defined we should also be able to build the unit test.

tests/online/badssl.c

@@ -5,23 +5,34 @@
 static git_repository *g_repo;
 
 #if defined(GIT_OPENSSL) || defined(GIT_WINHTTP) || defined(GIT_SECURE_TRANSPORT)
+static bool g_has_ssl = true;
+#else
+static bool g_has_ssl = false;
+#endif
 
 void test_online_badssl__expired(void)
 {
+	if (!g_has_ssl)
+		cl_skip();
+
 	cl_git_fail_with(GIT_ECERTIFICATE,
 			 git_clone(&g_repo, "https://expired.badssl.com/fake.git", "./fake", NULL));
 }
 
 void test_online_badssl__wrong_host(void)
 {
+	if (!g_has_ssl)
+		cl_skip();
+
 	cl_git_fail_with(GIT_ECERTIFICATE,
 			 git_clone(&g_repo, "https://wrong.host.badssl.com/fake.git", "./fake", NULL));
 }
 
 void test_online_badssl__self_signed(void)
 {
+	if (!g_has_ssl)
+		cl_skip();
+
 	cl_git_fail_with(GIT_ECERTIFICATE,
 			 git_clone(&g_repo, "https://self-signed.badssl.com/fake.git", "./fake", NULL));
 }
-
-#endif