[ci] Remove workaround for sanitizers (wpilibsuite#6638)

It's been added to the base image.

.github/workflows/sanitizers.yml

@@ -26,13 +26,8 @@ jobs:
             ctest-flags: ""
     name: "${{ matrix.name }}"
     runs-on: ubuntu-22.04
-    container:
-      image: wpilib/roborio-cross-ubuntu:2024-22.04
-      options: --privileged
+    container: wpilib/roborio-cross-ubuntu:2024-22.04
     steps:
-      - name: mmap rnd_bits workaround
-        run: sudo sysctl -w vm.mmap_rnd_bits=28
-
       - name: Install Dependencies
         run: sudo apt-get update && sudo apt-get install -y libopencv-dev libopencv4.5-java python-is-python3 clang-14 libprotobuf-dev protobuf-compiler ninja-build