refactor: remove redundant code

Signed-off-by: Michal Mrozek <michal.mrozek@intel.com>

Author: MichalMrozek

level_zero/core/source/driver/driver.cpp

@@ -33,8 +33,6 @@ void DriverImp::initialize(ze_result_t *result) {
 
     NEO::EnvironmentVariableReader envReader;
     L0EnvVariables envVariables = {};
-    envVariables.affinityMask =
-        envReader.getSetting("ZE_AFFINITY_MASK", std::string(""));
     envVariables.programDebugging =
         envReader.getSetting("ZET_ENABLE_PROGRAM_DEBUGGING", 0);
     envVariables.metrics =

level_zero/core/source/driver/driver_imp.h

@@ -35,7 +35,6 @@ class DriverImp : public Driver {
 };
 
 struct L0EnvVariables {
-    std::string affinityMask;
     uint32_t programDebugging;
     bool metrics;
     bool pin;