packages ubuntu: don't run lintian anymore

There is a case that required package name is different between working
environment and target ubuntu release. It is good enough to check error
on launchpad.net.

packages/ubuntu/upload.rb

@@ -197,7 +197,7 @@ def upload(code_name, mysql_short_version, mysql_version)
                     "s,MYSQL_VERSION\\|MARIADB_VERSION,#{mysql_version},",
                     "debian/control")
         run_command("debuild",
-                    "--set-envvar=LINTIAN_PROFILE=ubuntu",
+                    "--no-lintian",
                     "-d",
                     "-S",
                     "-sa",