proc-macro: check for non-args runtime calls added (#13742)

* proc-macro: check for non-args runtime calls added

* Update primitives/api/proc-macro/src/impl_runtime_apis.rs

Co-authored-by: Bastian Köcher <git@kchr.de>

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Co-authored-by: Bastian Köcher <git@kchr.de>
Co-authored-by: parity-processbot <>