Remove unused variables.
diff --git a/api.c b/api.c
index 9813029..ffbf4a1 100644
--- a/api.c
+++ b/api.c
@@ -3089,7 +3089,6 @@ static int itemstats(struct io_data *io_data, int i, char *id, struct cgminer_st
if (cgpu) {
#ifdef USE_USBUTILS
char details[256];
- int val;
if (cgpu->usbinfo.pipe_count)
snprintf(details, sizeof(details),
diff --git a/usbutils.c b/usbutils.c
index 8c66c59..41c4ef4 100644
--- a/usbutils.c
+++ b/usbutils.c
@@ -2345,7 +2345,6 @@ int _usb_read(struct cgpu_info *cgpu, int intinfo, int epinfo, char *buf, size_t
int endlen;
unsigned char *ptr, *usbbuf = cgpu->usbinfo.bulkbuf;
size_t usbbufread;
- int lock_wait;
DEVRLOCK(cgpu, pstate);
@@ -2620,7 +2619,6 @@ int _usb_write(struct cgpu_info *cgpu, int intinfo, int epinfo, char *buf, size_
double max, done;
__maybe_unused bool first = true;
int err, sent, tot, pstate;
- int lock_wait;
DEVRLOCK(cgpu, pstate);