perf tools: Remove some duplicated includes

There exists some duplicated includes in tools/perf, remove them.

Signed-off-by: Tiezhu Yang <yangtiezhu@loongson.cn>
Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com>
Cc: Jiri Olsa <jolsa@redhat.com>
Cc: Mark Rutland <mark.rutland@arm.com>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: xuefeng li <lixuefeng@loongson.cn>
Link: http://lore.kernel.org/lkml/1591071304-19338-2-git-send-email-yangtiezhu@loongson.cn
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>

tools/perf/builtin-report.c

@@ -47,7 +47,6 @@
 #include "util/time-utils.h"
 #include "util/auxtrace.h"
 #include "util/units.h"
-#include "util/branch.h"
 #include "util/util.h" // perf_tip()
 #include "ui/ui.h"
 #include "ui/progress.h"

tools/perf/util/annotate.c

@@ -41,7 +41,6 @@
 #include <linux/bitops.h>
 #include <linux/kernel.h>
 #include <linux/string.h>
-#include <bpf/libbpf.h>
 #include <subcmd/parse-options.h>
 #include <subcmd/run-command.h>
 

tools/perf/util/auxtrace.c

@@ -55,7 +55,6 @@
 #include "util/mmap.h"
 
 #include <linux/ctype.h>
-#include <linux/kernel.h>
 #include "symbol/kallsyms.h"
 #include <internal/lib.h>
 

tools/perf/util/config.c

@@ -21,7 +21,6 @@
 #include "build-id.h"
 #include "debug.h"
 #include "config.h"
-#include "debug.h"
 #include <sys/types.h>
 #include <sys/stat.h>
 #include <stdlib.h>

tools/perf/util/session.c

@@ -33,7 +33,6 @@
 #include "../perf.h"
 #include "arch/common.h"
 #include <internal/lib.h>
-#include <linux/err.h>
 
 #ifdef HAVE_ZSTD_SUPPORT
 static int perf_session__process_compressed_event(struct perf_session *session,