ARM: OMAP2+: Remove unneeded #include <linux/pinctrl/pinmux.h>

Commit 44c22a2d ("ARM: OMAP2+: pm33xx: Add support for rtc+ddr
in self refresh mode") added the include, but no user.
Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
Message-Id: <7f22fb21f76f4d23be2e31a5908bcfa295704ef4.1668000965.git.geert+renesas@glider.be>
Signed-off-by: Tony Lindgren <tony@atomide.com>

arch/arm/mach-omap2/pm33xx-core.c

@@ -16,7 +16,6 @@
 #include <linux/clk.h>
 #include <linux/cpu.h>
 #include <linux/platform_data/gpio-omap.h>
-#include <linux/pinctrl/pinmux.h>
 #include <linux/wkup_m3_ipc.h>
 #include <linux/of.h>
 #include <linux/rtc.h>