gpuWork: remove unused reference to mock_bpf

We are removing the bpf mocking system, cleanup the unused reference to
it in gpuWork.c

Bug: 359646531
Test: TH
Change-Id: I6231e3b2b7ae9dc9c865c39d4d0bd1d530a4bf87
Signed-off-by: Neill Kapron <nkapron@google.com>

Author: nkapron

services/gpuservice/gpuwork/bpfprogs/gpuWork.c

@@ -20,11 +20,7 @@
 #include <stddef.h>
 #include <stdint.h>
 
-#ifdef MOCK_BPF
-#include <test/mock_bpf_helpers.h>
-#else
 #include <bpf_helpers.h>
-#endif
 
 #define S_IN_NS (1000000000)
 #define SMALL_TIME_GAP_LIMIT_NS (S_IN_NS)