ARM: OMAP2+: remove some orphan function declarations.

commit 2fd14964 (ARM: OMAP2+: UART: Remove omap_uart_can_sleep and
add pm_qos) removed omap_uart_can_sleep and omap3_can_sleep, but not
their declarations.  So remove those now.
Signed-off-by: NeilBrown <neilb@suse.de>
Reviewed-by: Shubhrajyoti D <shubhrajyoti@ti.com>
[khilman@ti.com: minor changelog edits]
Signed-off-by: Kevin Hilman <khilman@ti.com>

arch/arm/mach-omap2/pm.h

@@ -18,7 +18,6 @@
 extern void *omap3_secure_ram_storage;
 extern void omap3_pm_off_mode_enable(int);
 extern void omap_sram_idle(void);
-extern int omap3_can_sleep(void);
 extern int omap_set_pwrdm_state(struct powerdomain *pwrdm, u32 state);
 extern int omap3_idle_init(void);
 extern int omap4_idle_init(void);

arch/arm/plat-omap/include/plat/serial.h

@@ -110,7 +110,6 @@ struct omap_board_data;
 struct omap_uart_port_info;
 
 extern void omap_serial_init(void);
-extern int omap_uart_can_sleep(void);
 extern void omap_serial_board_init(struct omap_uart_port_info *platform_data);
 extern void omap_serial_init_port(struct omap_board_data *bdata,
 		struct omap_uart_port_info *platform_data);