Revert "shippable: temporary bump the timeout for Azure jobs"

The Azure timeout should not accure anymore since
173d47d1f4.

This reverts commit aaa8835311.

test/utils/shippable/shippable.sh

@@ -137,8 +137,6 @@ trap cleanup EXIT
 
 if [[ "${COVERAGE:-}" == "--coverage" ]]; then
     timeout=60
-elif [[ "${script}" == "azure" ]]; then
-    timeout=70
 else
     timeout=45
 fi