staging: r8188eu: make rtl8188e_process_phy_info static

rtl8188e_process_phy_info is used only in rtl8188e_rxdesc.c. Make the
function static and remove its prototype from rtl8188e_recv.h.
Signed-off-by: Martin Kaiser <martin@kaiser.cx>
Link: https://lore.kernel.org/r/20220315205041.2714168-5-martin@kaiser.cxSigned-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

drivers/staging/r8188eu/hal/rtl8188e_rxdesc.c

@@ -45,7 +45,7 @@ static void process_link_qual(struct adapter *padapter, struct recv_frame *prfra
 	signal_stat->avg_val = signal_stat->total_val / signal_stat->total_num;
 }
 
-void rtl8188e_process_phy_info(struct adapter *padapter, void *prframe)
+static void rtl8188e_process_phy_info(struct adapter *padapter, void *prframe)
 {
 	struct recv_frame *precvframe = (struct recv_frame *)prframe;
 

drivers/staging/r8188eu/include/rtl8188e_recv.h

@@ -36,7 +36,6 @@ enum rx_packet_type {
 s32 rtl8188eu_init_recv_priv(struct adapter *padapter);
 void rtl8188eu_free_recv_priv(struct adapter * padapter);
 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);
 void update_recvframe_attrib_88e(struct recv_frame *fra, struct recv_stat *stat);