[UR] revert "phase 2 of counter-based event" (#15720)

Author: aarongreig

sycl/cmake/modules/FetchUnifiedRuntime.cmake

@@ -117,11 +117,13 @@ if(SYCL_UR_USE_FETCH_CONTENT)
   endfunction()
 
   set(UNIFIED_RUNTIME_REPO "https://github.com/oneapi-src/unified-runtime.git")
-  # commit 568a96aabc6edabe8514ae163aecc64cd5a41878
-  # Author: Mateusz P. Nowak <[email protected]>
-  # Date:   Tue Oct 15 13:57:26 2024 +0200
-  #     Benchmark updates for faster run and more reliable results (#2164)
-  set(UNIFIED_RUNTIME_TAG 568a96aabc6edabe8514ae163aecc64cd5a41878)
+  # commit 80fdb0261d4a3623b05d1795f2f59ace9f718d76
+  # Merge: 568a96aa 77b6c4c7
+  # Author: aarongreig <[email protected]>
+  # Date:   Wed Oct 16 13:53:51 2024 +0100
+  #     Merge pull request #2206 from oneapi-src/revert-2138-counter-based-3
+  #     Revert "[L0] Phase 2 of Counter-Based Event Implementation"
+  set(UNIFIED_RUNTIME_TAG 80fdb0261d4a3623b05d1795f2f59ace9f718d76)
 
   set(UMF_BUILD_EXAMPLES OFF CACHE INTERNAL "EXAMPLES")
   # Due to the use of dependentloadflag and no installer for UMF and hwloc we need