tools: bpftool: do not force gcc as CC

This allows transparent cross-compilation with CROSS_COMPILE by
relying on 7ed1c190 ("tools: fix cross-compile var clobbering").
Signed-off-by: Ivan Babrou <ivan@cloudflare.com>
Signed-off-by: Daniel Borkmann <daniel@iogearbox.net>

tools/bpf/bpftool/Makefile

@@ -35,8 +35,6 @@ $(LIBBPF)-clean:
 prefix ?= /usr/local
 bash_compdir ?= /usr/share/bash-completion/completions
 
-CC = gcc
-
 CFLAGS += -O2
 CFLAGS += -W -Wall -Wextra -Wno-unused-parameter -Wshadow -Wno-missing-field-initializers
 CFLAGS += -DPACKAGE='"bpftool"' -D__EXPORTED_HEADERS__ \