Fix travis global environment variables
Fix travis global environment variables

Remove the secure variable, which is available in the Travis settings.

Change the syntax for TEST_TIMEOUT, as shippable can not understand
the existing a: b syntax

Change-Id: Id8162623647ea88c65bf6e2cd2bf5925e94b05bd

happy5214/pywikibot-core,wikimedia/pywikibot-core,npdoty/pywikibot,wikimedia/pywikibot-core,hasteur/g13bot_tools_new,Darkdadaah/pywikibot-core,PersianWikipedia/pywikibot-core,happy5214/pywikibot-core,hasteur/g13bot_tools_new,Darkdadaah/pywikibot-core,jayvdb/pywikibot-core,magul/pywikibot-core,npdoty/pywikibot,jayvdb/pywikibot-core,magul/pywikibot-core,hasteur/g13bot_tools_new