remove reference to Vector2.cpp

Build/cmake/FileList.cmake

@@ -308,7 +308,6 @@ set(Core_SRC_FILES
     ${PROJECT_SOURCE_DIR}/Source/Core/UnicodeRange.cpp
     ${PROJECT_SOURCE_DIR}/Source/Core/URL.cpp
     ${PROJECT_SOURCE_DIR}/Source/Core/Variant.cpp
-    ${PROJECT_SOURCE_DIR}/Source/Core/Vector2.cpp
     ${PROJECT_SOURCE_DIR}/Source/Core/Vector3.cpp
     ${PROJECT_SOURCE_DIR}/Source/Core/Vector4.cpp
     ${PROJECT_SOURCE_DIR}/Source/Core/ViewState.cpp