Skip tests with paraview requirement
--- a/avogadro/CMakeLists.txt
+++ b/avogadro/CMakeLists.txt
@@ -107,16 +107,6 @@ if(Avogadro_ENABLE_RPC)
   add_definitions("-DAvogadro_ENABLE_RPC")
 endif()
 
-if(ENABLE_TESTING)
-  if(QT_VERSION EQUAL 6)
-    find_package(Qt6 COMPONENTS Test REQUIRED)
-  endif()
-  find_package(QtTesting REQUIRED NO_MODULE)
-  include_directories(${QtTesting_INCLUDE_DIRS})
-  link_directories(${QtTesting_LIBRARY_DIR})
-  add_definitions(-DQTTESTING)
-endif()
-
 # Need to add current binary dir to include path for UI file headers
 include_directories(${CMAKE_CURRENT_BINARY_DIR})
 
@@ -272,9 +262,6 @@ if(APPLE)
 else()
   set_target_properties(avogadro PROPERTIES OUTPUT_NAME "avogadro2")
 endif()
-if(ENABLE_TESTING)
-  target_link_libraries(avogadro qttesting)
-endif()
 if(QT_VERSION EQUAL 6)
   target_link_libraries(avogadro Qt6::OpenGL Qt6::OpenGLWidgets)
 endif()