* Clean warnings when all warning enabled
Not used variables / functions due to debug log
Dual define with different values :
cores\esp32/binary.h
#define B110 6
#define B1000000 64
tools/sdk/include/newlib/sys/termios.h
#define B110 3
#define B1000000 23
Local variable returned in WiFiclient Secure
* change due to deprecated function
* Update with proper variable and label
* Update esp32-hal-i2c.c
* Apply changes requested
* Fix warnings due to #define conflict thanks @atanisoft