remove broken fuzzer from oss-fuzz build script #7198

Job	Run time
cross-i386	33s
test (ubuntu-20.04, 1.22.x, rootless, -race)	7m 7s
test (ubuntu-20.04, 1.22.x, rootless)	6m 59s
test (ubuntu-20.04, 1.22.x, -race)	7m 42s
test (ubuntu-20.04, 1.22.x)	7m 27s
test (ubuntu-20.04, 1.23.x, rootless, -race)	7m 47s
test (ubuntu-20.04, 1.23.x, rootless)	7m 3s
test (ubuntu-20.04, 1.23.x, -race)	7m 46s
test (ubuntu-20.04, 1.23.x)	6m 36s
test (ubuntu-20.04, 1.23.x, criu-dev)	7m 15s
test (ubuntu-24.04, 1.22.x, rootless, -race)	9m 32s
test (ubuntu-24.04, 1.22.x, rootless)	9m 34s
test (ubuntu-24.04, 1.22.x, -race)	7m 46s
test (ubuntu-24.04, 1.22.x)	7m 14s
test (ubuntu-24.04, 1.23.x, rootless, -race)	9m 46s
test (ubuntu-24.04, 1.23.x, rootless)	9m 30s
test (ubuntu-24.04, 1.23.x, -race)	7m 55s
test (ubuntu-24.04, 1.23.x)	7m 21s
test (ubuntu-24.04, 1.23.x, criu-dev)	7m 47s
test (actuated-arm64-6cpu-8gb, 1.23.x, rootless)	11m 38s
test (actuated-arm64-6cpu-8gb, 1.23.x)	7m 35s
all-done	1s
	2h 41m 54s

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