Remove unused variable

[Karsten1987]

as per title

workspace/ros2/ros2_control_ws/src/ros-controls/ros2_controllers/joint_state_broadcaster/test/test_joint_state_broadcaster.cpp:326:16: error: unused variable ‘NUM_IFS’ [-Werror=unused-variable]
  326 |   const size_t NUM_IFS = IF_NAMES.size();

[codecov-commenter]

Codecov Report

Merging #181 (b66d541) into master (93ab94b) will decrease coverage by 0.03%.
The diff coverage is n/a.

@@            Coverage Diff             @@
##           master     #181      +/-   ##
==========================================
- Coverage   34.94%   34.90%   -0.04%     
==========================================
  Files         182       26     -156     
  Lines       16030     2289   -13741     
  Branches    10451     1493    -8958     
==========================================
- Hits         5601      799    -4802     
+ Misses        924      132     -792     
+ Partials     9505     1358    -8147     

Flag	Coverage Δ
unittests	34.90% <ø> (-0.04%)	⬇️

Flags with carried forward coverage won't be shown. Click here to find out more.

Impacted Files	Coverage Δ
...ory_controller/src/joint_trajectory_controller.cpp
...include/joint_trajectory_controller/trajectory.hpp
...include/joint_trajectory_controller/trajectory.hpp
...ectory_controller/test/test_trajectory_actions.cpp
...nt_state_controller/src/joint_state_controller.cpp
...s/test/test_load_joint_group_effort_controller.cpp
...ontroller/test/test_forward_command_controller.cpp
...lers/test/test_joint_group_velocity_controller.cpp
...lers/test/test_joint_group_position_controller.cpp
..._broadcaster/test/test_joint_state_broadcaster.cpp
... and 198 more

[bmagyar]

Fixes #180