Revert premature port to unreleased Qt 5.15

Authored by apol on Apr 6 2020, 11:20 AM.

Description

Revert premature port to unreleased Qt 5.15

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Committed
apolApr 6 2020, 11:20 AM
Parents
R39:70a23c563c5d: GIT_SILENT Upgrade ECM and KF5 version requirements for 5.69.0 release.
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@dfaure @apol This needs to be added also to the 5.69 tag branch, I guess?

Done (v5.69.0-rc2), thanks for noticing and for the notification.