removed declaration of dtls_connect() as extern function
removed declaration of dtls_connect() as extern function

nmacs/tinydtls,nmacs/tinydtls,spark/tinydtls,spark/tinydtls,jvermillard/tinydtls,nmacs/tinydtls,yunus/TinyDTLS-WebID,OlegHahm/tinydtls,spark/tinydtls,LaKabane/tinydtls,thecodemaiden/tinydtls-fork,jvermillard/tinydtls,jvermillard/tinydtls,thecodemaiden/tinydtls-fork,OlegHahm/tinydtls,malvira/tinydtls-code,thecodemaiden/tinydtls-fork,fvdnabee/tinydtls,fvdnabee/tinydtls,fvdnabee/tinydtls,OlegHahm/tinydtls,nmacs/tinydtls,malvira/tinydtls-code,LaKabane/tinydtls,yunus/TinyDTLS-WebID,yunus/TinyDTLS-WebID