staging: r8188eu: remove unused function prototype

Remove the prototype for rtl8188eu_recv_hdl. This function does not exist
in the r8188eu driver.

Signed-off-by: Martin Kaiser <martin@kaiser.cx>
Link: https://lore.kernel.org/r/20220315205041.2714168-4-martin@kaiser.cx
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

Author: martin-kaiser

drivers/staging/r8188eu/include/rtl8188e_recv.h

@@ -35,7 +35,6 @@ enum rx_packet_type {
 
 s32 rtl8188eu_init_recv_priv(struct adapter *padapter);
 void rtl8188eu_free_recv_priv(struct adapter * padapter);
-void rtl8188eu_recv_hdl(struct adapter * padapter, struct recv_buf *precvbuf);
 void rtl8188eu_recv_tasklet(unsigned long priv);
 void rtl8188e_process_phy_info(struct adapter * padapter, void *prframe);
 void update_recvframe_phyinfo_88e(struct recv_frame *fra, struct phy_stat *phy);