Removed redundant mode checks
Removed redundant mode checks

As anything below (D)TLS 1.2 is no longer supported, checks for the
minor version will always be true, and have therefore been removed

Signed-off-by: Joe Subbiani <58338b749ceb75cc139988a3309cc9c135482ffd@arm.com>

ARMmbed/mbedtls,Mbed-TLS/mbedtls,Mbed-TLS/mbedtls,ARMmbed/mbedtls,Mbed-TLS/mbedtls,ARMmbed/mbedtls,ARMmbed/mbedtls,Mbed-TLS/mbedtls