Remove 'be'

Signed-off-by: Shane Loretz <sloretz@openrobotics.org>

rclpy/src/rclpy/event.cpp

@@ -44,7 +44,7 @@ void Event::wait_until(std::shared_ptr<Clock> clock, rcl_time_point_t until)
     throw RCLError("failed to subtract times");
   }
 
-  // Cast because system clock resolution is be too big for nanoseconds on Windows & OSX
+  // Cast because system clock resolution is too big for nanoseconds on Windows & OSX
   const typename ClockType::time_point chrono_until = chrono_entry +
     std::chrono::duration_cast<typename ClockType::duration>(
     std::chrono::nanoseconds(delta_t.nanoseconds));