refactor(controller): Remove unused motion control methods and update CMake configuration

- Removed several unused methods from the Controller class, including HandStand, ClassicWalk, AutoRecoverSet, StaticWalk, TrotRun, EconomicGait, and SwitchAvoidMode.
- Updated CMakeLists.txt to remove the hardcoded include path for unitree SDK, streamlining the include directories for the main target.

CMakeLists.txt

@@ -23,7 +23,6 @@ message(STATUS "Found unitree_sdk2 in: ${unitree_sdk2_DIR}")
 # Include directories
 include_directories(
     include
-    /usr/local/include/unitree/
     ${CMAKE_CURRENT_SOURCE_DIR}/include
     ${CMAKE_CURRENT_SOURCE_DIR}/include/nlohmann
     $<$<NOT:$<BOOL:${PahoMqttC_FOUND}>>:${PAHO_MQTT_C_INCLUDE_DIR}>
@@ -42,8 +41,6 @@ set(SOURCES
 
 add_executable(main ${SOURCES})
 
-target_include_directories(main PRIVATE /usr/local/include)
-
 # Link libraries
 target_link_libraries(main
     PRIVATE