cmake: eigenpy is not a required dependency for pkgconfig

CMakeLists.txt

@@ -71,8 +71,8 @@ PROJECT(${PROJECT_NAME} ${PROJECT_ARGS})
 
 ADD_PROJECT_DEPENDENCY(Eigen3 REQUIRED PKG_CONFIG_REQUIRES "eigen3 >= 3.0.0")
 
-if (BUILD_PYTHON_INTERFACE)
-  ADD_PROJECT_DEPENDENCY(eigenpy 2.2 REQUIRED PKG_CONFIG_REQUIRES "eigenpy >= 2.2")
+if(BUILD_PYTHON_INTERFACE)
+  ADD_PROJECT_DEPENDENCY(eigenpy 2.2 REQUIRED)
 endif ()
 
 # Required dependencies