touch.c:deleting useless function (#2208)

selfdrive/common/touch.c

@@ -94,31 +94,3 @@ int touch_poll(TouchState *s, int* out_x, int* out_y, int timeout) {
   }
   return up;
 }
-
-int touch_read(TouchState *s, int* out_x, int* out_y) {
-  assert(out_x && out_y);
-  struct input_event event;
-  int err = read(s->fd, &event, sizeof(event));
-  if (err < sizeof(event)) {
-    return -1;
-  }
-  bool up = false;
-  switch (event.type) {
-  case EV_ABS:
-    if (event.code == ABS_MT_POSITION_X) {
-      s->last_x = event.value;
-    } else if (event.code == ABS_MT_POSITION_Y) {
-      s->last_y = event.value;
-    }
-    up = true;
-    break;
-  default:
-    break;
-  }
-  if (up) {
-    // adjust for flippening
-    *out_x = s->last_y;
-    *out_y = 1080 - s->last_x;
-  }
-  return up;
-}

selfdrive/common/touch.h

@@ -1,5 +1,4 @@
-#ifndef TOUCH_H
-#define TOUCH_H
+#pragma once
 
 #ifdef __cplusplus
 extern "C" {
@@ -12,10 +11,7 @@ typedef struct TouchState {
 
 void touch_init(TouchState *s);
 int touch_poll(TouchState *s, int *out_x, int *out_y, int timeout);
-int touch_read(TouchState *s, int* out_x, int* out_y);
 
 #ifdef __cplusplus
 }
 #endif
-
-#endif