perf env: Remove needless cpumap.h header

Only a 'struct perf_cmp_map' forward allocation is necessary, fix the
places that need the header but were getting it indirectly, by luck,
from env.h.

Cc: Adrian Hunter <adrian.hunter@intel.com>
Cc: Jiri Olsa <jolsa@kernel.org>
Cc: Namhyung Kim <namhyung@kernel.org>
Link: https://lkml.kernel.org/n/tip-3sj3n534zghxhk7ygzeaqlx9@git.kernel.org
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>

tools/perf/bench/epoll-ctl.c

@@ -21,12 +21,12 @@
 #include <sys/resource.h>
 #include <sys/epoll.h>
 #include <sys/eventfd.h>
+#include <internal/cpumap.h>
 #include <perf/cpumap.h>
 
 #include "../util/stat.h"
 #include <subcmd/parse-options.h>
 #include "bench.h"
-#include "cpumap.h"
 
 #include <err.h>