perf build: Remove NO_LIBCAP that controls nothing

[ Upstream commit 169343c ]

Using libcap was removed in commit e25ebda ("perf cap: Tidy up
and improve capability testing") and improve capability testing"),
however, some build documentation and a use of the NO_LIBCAP=1 were
lingering.

Remove these left over bits.

Fixes: e25ebda ("perf cap: Tidy up and improve capability testing")
Signed-off-by: Ian Rogers <irogers@google.com>
Cc: Adrian Hunter <adrian.hunter@intel.com>
Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com>
Cc: Ian Rogers <irogers@google.com>
Cc: Ingo Molnar <mingo@redhat.com>
Cc: James Clark <james.clark@linaro.org>
Cc: Jiri Olsa <jolsa@kernel.org>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>

Author: captain5050

tools/perf/Makefile.perf

@@ -88,8 +88,6 @@ include ../scripts/utilities.mak
 #
 # Define NO_LIBBPF if you do not want BPF support
 #
-# Define NO_LIBCAP if you do not want process capabilities considered by perf
-#
 # Define NO_SDT if you do not want to define SDT event in perf tools,
 # note that it doesn't disable SDT scanning support.
 #

tools/perf/tests/make

@@ -123,7 +123,7 @@ make_minimal        += NO_DEMANGLE=1 NO_LIBELF=1 NO_BACKTRACE=1
 make_minimal        += NO_LIBNUMA=1 NO_LIBBIONIC=1 NO_LIBDW=1
 make_minimal        += NO_LIBDW_DWARF_UNWIND=1 NO_AUXTRACE=1 NO_LIBBPF=1
 make_minimal        += NO_SDT=1 NO_JVMTI=1 NO_LIBZSTD=1
-make_minimal        += NO_LIBCAP=1 NO_CAPSTONE=1
+make_minimal        += NO_CAPSTONE=1
 
 # $(run) contains all available tests
 run := make_pure