[lftimer] Remove LFTIMER_XOSC32K option, assume that LFTIMER is XOSC32K if used from now on

firmware/inc/hw_config.h

@@ -218,7 +218,6 @@
  */
 #ifdef V0987
 #define USE_LFTIMER		1
-#define LFTIMER_XOSC32K
 #else
 #define USE_LFTIMER		0
 #define LFTIMER_GCLKIO_0_PIN	PIN_PA27

firmware/src/xosc.c

@@ -157,8 +157,6 @@ void gclk0_to_hf_clock(void)
 void gclk0_to_lf_clock(void)
 {
 #if USE_LFTIMER
-
-#ifdef LFTIMER_XOSC32K
   /* Setup XOSC  */
   system_clock_source_xosc32k_set_config(SYSTEM_CLOCK_EXTERNAL_CLOCK,
                                          SYSTEM_XOSC32K_STARTUP_16384, /* ~500ms startup*/
@@ -172,25 +170,12 @@ void gclk0_to_lf_clock(void)
 
   /* Wait for it to stabilise */
   while (!system_clock_source_is_ready(SYSTEM_CLOCK_SOURCE_XOSC32K));
-
-#else
-  /* Configure GCLK_IO[0] pin */
-  system_pinmux_pin_set_config(LFTIMER_GCLKIO_0_PINMUX >> 16,
-                               LFTIMER_GCLKIO_0_PINMUX & 0xFFFF,
-                               SYSTEM_PINMUX_PIN_DIR_INPUT,
-                               SYSTEM_PINMUX_PIN_PULL_NONE,
-                               true);
-#endif
 #endif
 
   /* Configure GCLK0 to GCLK_IO[0] / OSCULP32K */
   system_gclk_gen_set_config(GCLK_GENERATOR_0,
 #if USE_LFTIMER
-#ifdef LFTIMER_XOSC32K
                              GCLK_SOURCE_XOSC32K, /* Source             */
-#else
-                             GCLK_SOURCE_GCLKIN, /* Source 		*/
-#endif
 #else
                              GCLK_SOURCE_OSCULP32K, /* Source 		*/
 #endif