Remove several unused variables to clean up build output.
(too trivial to send in separate patches).

Signed-off-by: Sergey Senozhatsky <sergey.senozhat...@gmail.com>

---

diff --git a/measurement/extech.cpp b/measurement/extech.cpp
index 4f73a62..b796f93 100644
--- a/measurement/extech.cpp
+++ b/measurement/extech.cpp
@@ -62,8 +62,6 @@
 
 using namespace std;
 
-static const char * device = "/dev/ttyUSB0";
-
 
 struct packet {
        char    buf[256];
diff --git a/measurement/measurement.cpp b/measurement/measurement.cpp
index 3dbaab9..42924cb 100644
--- a/measurement/measurement.cpp
+++ b/measurement/measurement.cpp
@@ -118,9 +118,6 @@ void detect_power_meters(void)
 
 void extech_power_meter(const char *devnode)
 {
-       DIR *dir;
-       struct dirent *entry;
-
        class extech_power_meter *meter;
 
        meter = new class extech_power_meter(devnode);
diff --git a/process/do_process.cpp b/process/do_process.cpp
index c0eb102..42bf4e1 100644
--- a/process/do_process.cpp
+++ b/process/do_process.cpp
@@ -257,8 +257,7 @@ void perf_process_bundle::handle_trace_point(int type, void 
*trace, int cpu, uin
                struct wakeup_entry *we;
                class power_consumer *from = NULL;
                class process *dest_proc, *from_proc;
-               int i;
-               
+       
                we = (struct wakeup_entry *)trace;
 
                if ( (flags & TRACE_FLAG_HARDIRQ) || (flags & 
TRACE_FLAG_SOFTIRQ)) {
@@ -876,7 +875,6 @@ void html_summary(void)
 
 void process_process_data(void)
 {
-       unsigned int i;
        if (!perf_events)
                return;
 
@@ -935,8 +933,6 @@ double total_cpu_time(void)
 
 void end_process_data(void)
 {
-       unsigned int i;
-
        report_utilization("cpu-consumption", total_cpu_time());
        report_utilization("cpu-wakeups", total_wakeups());
        report_utilization("gpu-operations", total_gpu_ops());
@@ -952,7 +948,6 @@ void end_process_data(void)
        clear_consumers();
 
        perf_events->clear();
-
 }
 
 void clear_process_data(void)

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