Revert "Actually be lazy about suspending"

This reverts commit 3f393d3f23acfb0b3de3af3622241cc1bd306289.
Revert "Attempt to be lazy about suspending and resuming reads"

This reverts commit de14aaa2bd7a68675376368170e59b42a99ef727.

Conflicts:
	core/src/main/java/io/undertow/server/protocol/http/HttpReadListener.java