doxygen: remove redundant usages of def

The def command Indicates that a comment block contains documentation
for a #define macro. This is useful if the comment block documents a
macro not adjacent to it, e.g.

```c
/**
 * @def MAX(x,y)
 * @brief Computes the maximum of @A x and @A y.
 */
 #ifdef XXX
 #define MAX(x,y) ...
 #endif
```

However, it is not necessary if the comment is adjacent to the
definition, e.g.

```c
/**
 * @brief Computes the maximum of @A x and @A y.
 */
 #define MAX(x,y) ...
```

This patch removes all unnecessary def entries in-tree.

Signed-off-by: Gerard Marull-Paretas <[email protected]>

Author: gmarull

drivers/sensor/vl53l0x/vl53l0x_platform.h

@@ -41,7 +41,6 @@ typedef struct {
 typedef VL53L0X_Dev_t *VL53L0X_DEV;
 
 /**
- * @def PALDevDataGet
  * @brief Get ST private structure @a VL53L0X_DevData_t data access
  *
  * @param Dev       Device Handle
@@ -53,7 +52,6 @@ typedef VL53L0X_Dev_t *VL53L0X_DEV;
 #define PALDevDataGet(Dev, field) (Dev->Data.field)
 
 /**
- * @def PALDevDataSet(Dev, field, data)
  * @brief  Set ST private structure @a VL53L0X_DevData_t data field
  * @param Dev       Device Handle
  * @param field     ST structure field name

include/zephyr/bluetooth/addr.h

@@ -164,8 +164,7 @@ static inline bool bt_addr_le_is_identity(const bt_addr_le_t *addr)
 	return BT_ADDR_IS_STATIC(&addr->a);
 }
 
-/** @def BT_ADDR_STR_LEN
- *
+/**
  *  @brief Recommended length of user string buffer for Bluetooth address
  *
  *  @details The recommended length guarantee the output of address
@@ -174,8 +173,7 @@ static inline bool bt_addr_le_is_identity(const bt_addr_le_t *addr)
  */
 #define BT_ADDR_STR_LEN 18
 
-/** @def BT_ADDR_LE_STR_LEN
- *
+/**
  *  @brief Recommended length of user string buffer for Bluetooth LE address
  *
  *  @details The recommended length guarantee the output of address