The header is no longer needed since the event_pipe implementation
was updated to rely on libbpf's perf_buffer. This makes bpftool free of
dependencies to perf files, and we can update the Makefile accordingly.
Fixes: 9b190f185d2f ("tools/bpftool: switch map event_pipe to libbpf's perf_buffer")
Signed-off-by: Quentin Monnet <quentin@isovalent.com>
Signed-off-by: Andrii Nakryiko <andrii@kernel.org>
Link: https://lore.kernel.org/bpf/20211020094826.16046-1-quentin@isovalent.com
 
        -I$(LIBBPF_INCLUDE) \
        -I$(srctree)/kernel/bpf/ \
        -I$(srctree)/tools/include \
-       -I$(srctree)/tools/include/uapi \
-       -I$(srctree)/tools/perf
+       -I$(srctree)/tools/include/uapi
 CFLAGS += -DBPFTOOL_VERSION='"$(BPFTOOL_VERSION)"'
 ifneq ($(EXTRA_CFLAGS),)
 CFLAGS += $(EXTRA_CFLAGS)
 
 #include <sys/syscall.h>
 
 #include <bpf/bpf.h>
-#include <perf-sys.h>
 
 #include "main.h"