remove timing algo

Author: Jan Kamidra

targets/TARGET_STM/TARGET_STM32U0/i2c_device.h

@@ -52,12 +52,6 @@ extern "C" {
 uint32_t i2c_get_pclk(I2CName i2c);
 uint32_t i2c_get_timing(I2CName i2c, uint32_t current_timing, int current_hz, int hz);
 
-#if MBED_CONF_TARGET_I2C_TIMING_VALUE_ALGO
-uint32_t i2c_compute_timing(uint32_t clock_src_freq, uint32_t i2c_freq);
-void i2c_compute_presc_scldel_sdadel(uint32_t clock_src_freq, uint32_t I2C_speed);
-uint32_t i2c_compute_scll_sclh(uint32_t clock_src_freq, uint32_t I2C_speed);
-#endif // MBED_CONF_TARGET_I2C_TIMING_VALUE_ALGO
-
 #endif // DEVICE_I2C
 
 #ifdef __cplusplus