wininet: Remove WINAPI on static functions where not needed.

dlls/wininet/ftp.c

@@ -3220,7 +3220,7 @@ static void FTPFINDNEXT_Destroy(WININETHANDLEHEADER *hdr)
     HeapFree(GetProcessHeap(), 0, lpwfn);
 }
 
-static DWORD WINAPI FTPFINDNEXT_FindNextFileProc(WININETFTPFINDNEXTW *find, LPVOID data)
+static DWORD FTPFINDNEXT_FindNextFileProc(WININETFTPFINDNEXTW *find, LPVOID data)
 {
     WIN32_FIND_DATAW *find_data = data;
     DWORD res = ERROR_SUCCESS;

dlls/wininet/http.c

@@ -618,7 +618,7 @@ static BOOL HTTP_DoAuthorization( LPWININETHTTPREQW lpwhr, LPCWSTR pszAuthValue,
 /***********************************************************************
  *           HTTP_HttpAddRequestHeadersW (internal)
  */
-static BOOL WINAPI HTTP_HttpAddRequestHeadersW(LPWININETHTTPREQW lpwhr,
+static BOOL HTTP_HttpAddRequestHeadersW(LPWININETHTTPREQW lpwhr,
 	LPCWSTR lpszHeader, DWORD dwHeaderLength, DWORD dwModifier)
 {
     LPWSTR lpszStart;

dlls/wininet/urlcache.c

@@ -2335,7 +2335,7 @@ BOOL WINAPI CreateUrlCacheEntryW(
  *   result will lose data for arbitrary binary data.
  *
  */
-static BOOL WINAPI CommitUrlCacheEntryInternal(
+static BOOL CommitUrlCacheEntryInternal(
     IN LPCWSTR lpszUrlName,
     IN LPCWSTR lpszLocalFileName,
     IN FILETIME ExpireTime,