chymy: Remove unused code in test/e2e/{upgrades,storage,network}

JobBuild
99348
02-23 07:51
c32793a4
02-23 07:50
pull-kubernetes-bazel-build 1364120310311292928
pull-kubernetes-bazel-test 1364120310344847360
pull-kubernetes-conformance-kind-ga-only-parallel 1364120310655225856
pull-kubernetes-conformance-kind-ipv6-parallel 1364120310399373312
pull-kubernetes-dependencies 1364120310441316352
pull-kubernetes-e2e-gce-100-performance 1364120311963848704
pull-kubernetes-e2e-gce-csi-serial 1364120315415760896
pull-kubernetes-e2e-gce-storage-slow 1364120312802709504
pull-kubernetes-e2e-gce-storage-slow-rbe 1364144299364585472 1364132569645322240 1364120314476236800
pull-kubernetes-e2e-gce-storage-snapshot 1364120313645764608
pull-kubernetes-e2e-gce-ubuntu-containerd 1364120310483259392
pull-kubernetes-e2e-kind 1364169102054133760 1364160496990687232 1364144299301670912 1364132569582407680 1364120310579728384
pull-kubernetes-e2e-kind-ipv6 1364120310621671424
pull-kubernetes-e2e-ubuntu-gce-network-policies 1364134953549303808 1364120310692974592
pull-kubernetes-integration 1364120310533591040
pull-kubernetes-node-e2e 1364120311120793600
pull-kubernetes-typecheck 1364120316153958400
pull-kubernetes-unit 1367662827279486976 1367638693044555776
pull-kubernetes-verify 1364120317831680000
pull-kubernetes-verify-govet-levee 1364120316988624896