usb: musb: drop board_set_vbus

that's not used anymore. So let's drop it.
Signed-off-by: Felipe Balbi <balbi@ti.com>

drivers/usb/musb/am35x.c

@@ -421,8 +421,6 @@ static int am35x_musb_init(struct musb *musb)
 	if (is_host_enabled(musb))
 		setup_timer(&otg_workaround, otg_timer, (unsigned long) musb);
 
-	musb->board_set_vbus = am35x_musb_set_vbus;
-
 	/* Global reset */
 	sw_reset = omap_ctrl_readl(AM35XX_CONTROL_IP_SW_RESET);
 

drivers/usb/musb/blackfin.c

@@ -395,7 +395,6 @@ static int bfin_musb_init(struct musb *musb)
 	bfin_musb_reg_init(musb);
 
 	if (is_host_enabled(musb)) {
-		musb->board_set_vbus = bfin_musb_set_vbus;
 		setup_timer(&musb_conn_timer,
 			musb_conn_timer_handler, (unsigned long) musb);
 	}

drivers/usb/musb/da8xx.c

@@ -437,8 +437,6 @@ static int da8xx_musb_init(struct musb *musb)
 	if (is_host_enabled(musb))
 		setup_timer(&otg_workaround, otg_timer, (unsigned long)musb);
 
-	musb->board_set_vbus = da8xx_musb_set_vbus;
-
 	/* Reset the controller */
 	musb_writel(reg_base, DA8XX_USB_CTRL_REG, DA8XX_SOFT_RESET_MASK);
 

drivers/usb/musb/davinci.c

@@ -404,7 +404,6 @@ static int davinci_musb_init(struct musb *musb)
 	if (is_host_enabled(musb))
 		setup_timer(&otg_workaround, otg_timer, (unsigned long) musb);
 
-	musb->board_set_vbus = davinci_musb_set_vbus;
 	davinci_musb_source_power(musb, 0, 1);
 
 	/* dm355 EVM swaps D+/D- for signal integrity, and

drivers/usb/musb/musb_core.c

@@ -2000,7 +2000,6 @@ musb_init_controller(struct device *dev, int nIrq, void __iomem *ctrl)
 	 *   - may initialize an integrated tranceiver
 	 *   - initializes musb->xceiv, usually by otg_get_transceiver()
 	 *   - stops powering VBUS
-	 *   - assigns musb->board_set_vbus if host mode is enabled
 	 *
 	 * There are various transciever configurations.  Blackfin,
 	 * DaVinci, TUSB60x0, and others integrate them.  OMAP3 uses

drivers/usb/musb/musb_core.h

@@ -412,11 +412,6 @@ struct musb {
 	struct timer_list	otg_timer;
 #endif
 
-	/* called with IRQs blocked; ON/nonzero implies starting a session,
-	 * and waiting at least a_wait_vrise_tmout.
-	 */
-	void			(*board_set_vbus)(struct musb *, int is_on);
-
 	struct dma_controller	*dma_controller;
 
 	struct device		*controller;

drivers/usb/musb/omap2430.c

@@ -268,9 +268,6 @@ static int omap2430_musb_init(struct musb *musb)
 			musb_readl(musb->mregs, OTG_INTERFSEL),
 			musb_readl(musb->mregs, OTG_SIMENABLE));
 
-	if (is_host_enabled(musb))
-		musb->board_set_vbus = omap2430_musb_set_vbus;
-
 	setup_timer(&musb_idle_timer, musb_do_idle, (unsigned long) musb);
 
 	return 0;