Remove unused includes for <errno.h> and <signal.h> to clean up the
code and reduce unnecessary dependencies.

Signed-off-by: Wander Lairson Costa <wander@redhat.com>
---
 tools/tracing/rtla/src/osnoise_hist.c | 1 -
 tools/tracing/rtla/src/timerlat.c     | 1 -
 tools/tracing/rtla/src/timerlat_top.c | 1 -
 tools/tracing/rtla/src/trace.c        | 1 -
 4 files changed, 4 deletions(-)

diff --git a/tools/tracing/rtla/src/osnoise_hist.c b/tools/tracing/rtla/src/osnoise_hist.c
index af7d8621dd9d7..c8e681f732315 100644
--- a/tools/tracing/rtla/src/osnoise_hist.c
+++ b/tools/tracing/rtla/src/osnoise_hist.c
@@ -9,7 +9,6 @@
 #include <string.h>
 #include <signal.h>
 #include <unistd.h>
-#include <errno.h>
 #include <stdio.h>
 #include <time.h>
 
diff --git a/tools/tracing/rtla/src/timerlat.c b/tools/tracing/rtla/src/timerlat.c
index ac2ec89d3b6ba..b3d63506c4a62 100644
--- a/tools/tracing/rtla/src/timerlat.c
+++ b/tools/tracing/rtla/src/timerlat.c
@@ -9,7 +9,6 @@
 #include <stdlib.h>
 #include <string.h>
 #include <unistd.h>
-#include <errno.h>
 #include <fcntl.h>
 #include <stdio.h>
 #include <sched.h>
diff --git a/tools/tracing/rtla/src/timerlat_top.c b/tools/tracing/rtla/src/timerlat_top.c
index f7e85dc918ef3..79ee66743bf1d 100644
--- a/tools/tracing/rtla/src/timerlat_top.c
+++ b/tools/tracing/rtla/src/timerlat_top.c
@@ -11,7 +11,6 @@
 #include <unistd.h>
 #include <stdio.h>
 #include <time.h>
-#include <errno.h>
 #include <sched.h>
 #include <pthread.h>
 
diff --git a/tools/tracing/rtla/src/trace.c b/tools/tracing/rtla/src/trace.c
index 0a81a2e4667ef..092fcab77dc4c 100644
--- a/tools/tracing/rtla/src/trace.c
+++ b/tools/tracing/rtla/src/trace.c
@@ -2,7 +2,6 @@
 #define _GNU_SOURCE
 #include <sys/sendfile.h>
 #include <tracefs.h>
-#include <signal.h>
 #include <stdlib.h>
 #include <unistd.h>
 #include <errno.h>
-- 
2.52.0