Revert "controller: Properly handle localnet flows in I+P.". #3246

Job	Run time
dpdk gcc	8s
linux rpm fedora	6m 46s
osx clang --disable-ssl	2m 35s
Prepare container	2m 24s
linux gcc --disable-ssl	2m 17s
linux clang --disable-ssl	2m 33s
linux gcc test -500	14m 4s
linux gcc test 501-1000	10m 15s
linux gcc test 1001-	6m 5s
linux clang test sanitizers -300	11m 24s
linux clang test sanitizers 301-600	13m 51s
linux clang test sanitizers 601-900	9m 22s
linux clang test sanitizers 901-1200	7m 34s
linux clang test sanitizers 1201-	7m 25s
linux gcc test -ljemalloc -500	14m 48s
linux gcc test -ljemalloc 501-1000	10m 36s
linux gcc test -ljemalloc 1001-	5m 57s
linux gcc system-test-dpdk dpdk -100	10m 51s
linux gcc system-test-dpdk dpdk 101-200	17m 28s
linux gcc system-test-dpdk dpdk 201-	19m 11s
linux gcc system-test-userspace -100	9m 57s
linux gcc system-test-userspace 101-200	16m 18s
linux gcc system-test-userspace 201-	17m 54s
linux gcc system-test -100	12m 59s
linux gcc system-test 101-200	18m 13s
linux gcc system-test 201-	24m 51s
linux clang system-test sanitizers -100	14m 27s
linux clang system-test sanitizers 101-200	20m 5s
linux clang system-test sanitizers 201-	26m 39s
linux x86 gcc --disable-ssl	2m 17s
	5h 39m 14s

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