remove date from core, app_wasm.html

src/os/os_win32.c

@@ -0,0 +1,13 @@
+fn os_date_t os_date_now(void) {
+    os_date_t result = {0};
+    SYSTEMTIME lt;
+    GetLocalTime(&lt);
+    result.ms = lt.wMilliseconds;
+    result.sec = lt.wSecond;
+    result.min = lt.wMinute;
+    result.hour = lt.wHour;
+    result.day = lt.wDay;
+    result.month = lt.wMonth;
+    result.year = lt.wYear;
+    return result;
+}