Remove obsolete make target for fixing quote escaping (was ACTS-235)

Original author Christian Gumpert @cgumpert

In earlier cmake versions (<3.4), interface compiler definition (and probably also other properties) in the exported cmake target configuration files had no proper quote escaping. With the update of the minimum cmake version as discussed in ACTS-223, this is no longer needed.

Edited Mar 27, 2019 by Moritz Kiehn

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