Simplify __attribute__((__printf__)) use.

We don't need this now everyone's using clang...

Bug: http://b/69933068
Test: ran tests
Change-Id: I88f0cf03981ade47e210387fd6f3a2706dfeb9b8
diff --git a/sysdeps_win32.cpp b/sysdeps_win32.cpp
index bfac342..52f586c 100644
--- a/sysdeps_win32.cpp
+++ b/sysdeps_win32.cpp
@@ -2455,9 +2455,8 @@
 }
 
 // Function prototype because attributes cannot be placed on func definitions.
-static int _console_vfprintf(const HANDLE console, FILE* stream,
-                             const char *format, va_list ap)
-    __attribute__((__format__(ADB_FORMAT_ARCHETYPE, 3, 0)));
+static int _console_vfprintf(const HANDLE console, FILE* stream, const char* format, va_list ap)
+        __attribute__((__format__(__printf__, 3, 0)));
 
 // Internal function to format a UTF-8 string and write it to a Win32 console.
 // Returns -1 on error.