demos/TTSArmLinux: Remove unnecessary opencv dependencies

Demo does not use OpenCV functions. Even if the Paddle-Lite library enables OpenCV, it does not need to be installed when building the demo.

demos/TTSArmLinux/src/CMakeLists.txt

@@ -42,17 +42,6 @@ else()
     message(FATAL_ERROR "Could not found OpenMP!")
     return()
 endif()
-find_package(OpenCV REQUIRED)
-if(OpenCV_FOUND OR OpenCV_CXX_FOUND)
-    include_directories(${OpenCV_INCLUDE_DIRS})
-    message(STATUS "OpenCV library status:")
-    message(STATUS "    version: ${OpenCV_VERSION}")
-    message(STATUS "    libraries: ${OpenCV_LIBS}")
-    message(STATUS "    include path: ${OpenCV_INCLUDE_DIRS}")
-else()
-    message(FATAL_ERROR "Could not found OpenCV!")
-    return()
-endif()
 
 add_executable(paddlespeech_tts_demo main.cc)
 target_link_libraries(paddlespeech_tts_demo paddle_light_api_shared)