Remove threequarter_fs, log_level; make functions static

2 functions with same name as static to make it clearer they are separate.

remove unused copy of log_level global var.

remove threequarter sampling variable from the radio board general
configuration. The decision of sampling rate is made above. A better
behavior can be done later, like ask to the radio board what sampling
rate it can do,then use it to decide the appropiate sampling rate from
the gNB configuration. In UE case, it is another issue, as the sampling
rate would change after we decode SIB1, but also it is not developped
yet.

radio/COMMON/common_lib.h

@@ -204,8 +204,6 @@ typedef struct split7_config {
 typedef struct openair0_config {
   //! Module ID for this configuration
   int Mod_id;
-  //! device log level
-  int log_level;
   //! duplexing mode
   duplex_mode_t duplex_mode;
   //! number of downlink resource blocks
@@ -292,8 +290,6 @@ typedef struct openair0_config {
   double rx_sample_rate;
   //! the sample rate for transmit.
   double tx_sample_rate;
-  //! check for threequarter sampling rate
-  int8_t threequarter_fs;
   //! Flag to indicate this configuration is for NR
   int nr_flag;
   //! NR band number