fix: Don't disable bindless allocation using an undocumented env var

Bindless allocation is a core functionality. Having obscure mechanisms
disabling it at runtime leads to unwanted side effects, leading to
application issues, for example on applications trying to use SYCL
bindless textures, that are supposed to be available unconditionally on
DG2 and newer (when texturing is supported).
This is what is assumed here:
https://github.com/oneapi-src/unified-runtime/blob/dd7d5c6256f7ec90be9753e6e5a24d06a6b36fd6/source/adapters/level_zero/device.cpp#L1095

This reverts commit 81644a4.

Signed-off-by: Xavier Hallade <[email protected]>

Author: ph0b

shared/source/device/root_device.cpp

@@ -17,7 +17,6 @@
 #include "shared/source/helpers/gfx_core_helper.h"
 #include "shared/source/helpers/hw_info.h"
 #include "shared/source/memory_manager/memory_manager.h"
-#include "shared/source/os_interface/debug_env_reader.h"
 #include "shared/source/os_interface/os_context.h"
 #include "shared/source/utilities/software_tags_manager.h"
 
@@ -51,10 +50,7 @@ Device *RootDevice::getRootDevice() const {
 
 void RootDevice::createBindlessHeapsHelper() {
 
-    EnvironmentVariableReader envReader;
-    bool disableGlobalBindless = envReader.getSetting("NEO_L0_SYSMAN_NO_CONTEXT_MODE", false);
-
-    if (!disableGlobalBindless && ApiSpecificConfig::getGlobalBindlessHeapConfiguration(this->getReleaseHelper()) && ApiSpecificConfig::getBindlessMode(*this)) {
+    if (ApiSpecificConfig::getGlobalBindlessHeapConfiguration(this->getReleaseHelper()) && ApiSpecificConfig::getBindlessMode(*this)) {
         this->executionEnvironment->rootDeviceEnvironments[getRootDeviceIndex()]->createBindlessHeapsHelper(this, getNumGenericSubDevices() > 1);
     }
 }