configs: stm32f: Remove STM32_HSE_HZ for all STM32F series

As clk_stm32f driver is able to retrieve HSE frequency from DT,
CONFIG_STM32_HSE_HZ becomes useless.
Signed-off-by: NPatrice Chotard <patrice.chotard@st.com>

include/configs/stm32f429-discovery.h

@@ -43,8 +43,6 @@
 
 #define CONFIG_STM32_FLASH
 
-#define CONFIG_STM32_HSE_HZ		8000000
-
 #define CONFIG_SYS_CLK_FREQ		180000000 /* 180 MHz */
 
 #define CONFIG_SYS_HZ_CLOCK		1000000	/* Timer is clocked at 1MHz */

include/configs/stm32f469-discovery.h

@@ -39,7 +39,6 @@
 
 #define CONFIG_STM32_FLASH
 
-#define CONFIG_STM32_HSE_HZ		8000000
 #define CONFIG_SYS_CLK_FREQ		180000000 /* 180 MHz */
 #define CONFIG_SYS_HZ_CLOCK		1000000	/* Timer is clocked at 1MHz */
 

include/configs/stm32f746-disco.h

@@ -37,7 +37,6 @@
 #define CONFIG_MII
 #define CONFIG_PHY_SMSC
 
-#define CONFIG_STM32_HSE_HZ		25000000
 #define CONFIG_SYS_CLK_FREQ		200000000 /* 200 MHz */
 #define CONFIG_SYS_HZ_CLOCK		1000000	/* Timer is clocked at 1MHz */