Remove redundant Qt discovery in moveit_setup_framework

The rviz2-version-based Qt selection already finds Qt before any rviz or
moveit dependency, so the second find_package(Qt6) block was redundant and
could pull in Qt6 even on the Qt5 path.

Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>

Author: nbbrooks

moveit_setup_assistant/moveit_setup_framework/CMakeLists.txt

@@ -23,12 +23,6 @@ else()
 endif()
 find_package(moveit_core REQUIRED)
 find_package(moveit_ros_planning REQUIRED)
-# Find Qt before packages that transitively depend on it (rviz, visualization)
-find_package(Qt6 QUIET COMPONENTS Core Widgets)
-if(NOT Qt6_FOUND)
-  find_package(Qt5Core REQUIRED)
-  find_package(Qt5Widgets REQUIRED)
-endif()
 find_package(moveit_ros_visualization REQUIRED)
 find_package(pluginlib REQUIRED)
 find_package(rclcpp REQUIRED)