[SYCL] Enable early optimizations for 2 LIT tests (#2444)

Bugs were fixed for these tests, so early optimizations can be enabled.

Author: againull

sycl/test/basic_tests/accessor/accessor.cpp

@@ -1,7 +1,4 @@
-// TODO: Enable compilation w/o -fno-sycl-early-optimizations option.
-// See https://github.com/intel/llvm/issues/2264 for more details.
-
-// RUN: %clangxx -fsycl -fno-sycl-early-optimizations -fsycl-targets=%sycl_triple %s -o %t.out
+// RUN: %clangxx -fsycl -fsycl-targets=%sycl_triple %s -o %t.out
 // RUN: env SYCL_DEVICE_TYPE=HOST %t.out
 // RUN: %CPU_RUN_PLACEHOLDER %t.out
 // RUN: %GPU_RUN_PLACEHOLDER %t.out

sycl/test/regression/group.cpp

@@ -1,7 +1,4 @@
-// TODO: Enable compilation w/o -fno-sycl-early-optimizations option.
-// See https://github.com/intel/llvm/issues/2264 for more details.
-
-// RUN: %clangxx -fsycl -fno-sycl-early-optimizations -fsycl-targets=%sycl_triple %s -o %t.out
+// RUN: %clangxx -fsycl -fsycl-targets=%sycl_triple %s -o %t.out
 // RUN: env SYCL_DEVICE_TYPE=HOST %t.out
 // RUN: %CPU_RUN_PLACEHOLDER %t.out
 // RUN: %GPU_RUN_PLACEHOLDER %t.out