Removed MSR mod for Bulldozer

It turned out to be useless: https://www.reddit.com/r/MoneroMining/comments/et7s7w/psa_amd_opteronfxa6a8a10_owners_needed_to_test/

src/backend/cpu/interfaces/ICpuInfo.h

@@ -47,7 +47,6 @@ public:
         MSR_MOD_NONE,
         MSR_MOD_RYZEN,
         MSR_MOD_INTEL,
-        MSR_MOD_BULLDOZER,
         MSR_MOD_CUSTOM,
         MSR_MOD_MAX
     };