Revert "IMC: Updated definitions to version 5.5.x (LSTS/imc@0f49709ad61157fa2d14f3710d4c41f0345ac91e)"

This reverts commit 63c878f4fe3255ead2b8f51f9329ac60d07b5b26.
IMC: Updated definitions from branch release/imc-5.4.x (LSTS/imc@92a5a101fed0d7ac4aa0756353b0271cad790ebe).