Remove leftover

Author: Hind-M

.github/workflows/windows.yml

@@ -36,8 +36,7 @@ jobs:
           -DCMAKE_INSTALL_PREFIX=%CONDA_PREFIX% \
           -DCMAKE_PREFIX_PATH=%CONDA_PREFIX% \
           -DSPARROW_IPC_BUILD_SHARED=${{ matrix.build_shared }} \
-          -DSPARROW_IPC_BUILD_TESTS=ON \
-          $TEST_COVERAGE_ACTIVATION
+          -DSPARROW_IPC_BUILD_TESTS=ON
 
       - name: Build sparrow-ipc
         working-directory: build