tap_esc: fix resource leak (#18296)

src/drivers/magnetometer/lsm9ds1_mag/LSM9DS1_MAG.cpp

@@ -176,7 +176,6 @@ void LSM9DS1_MAG::RunImpl()
 					// sensor Z is up (RHC), flip z for publication
 					// sensor X is aligned with -X of lsm9ds1 accel/gyro
 					x = (x == INT16_MIN) ? INT16_MAX : -x;
-					y = y;
 					z = (z == INT16_MIN) ? INT16_MAX : -z;
 
 					_px4_mag.update(now, x, y, z);

src/drivers/tap_esc/tap_esc_uploader.cpp

@@ -1110,6 +1110,7 @@ int TAP_ESC_UPLOADER::verify_crc(uint8_t esc_id, size_t fw_size_local)
 
 	if (ret != OK) {
 		PX4_DEBUG("could not read firmware size");
+		delete [] file_buf;
 		return ret;
 	}