remove unused method

Change-Id: I3b3006230476b0d16dad54035b0c80a95cbc2b20
killed this method again

This method must be a zombie as it reappears again and again despite
being killed.

Change-Id: Ic41e3259f2125eca7d114f54b032553e53bf71a2
we only need one typedef for PointList

Change-Id: Ic64f871e014bd48c5eadb6f92b69c6466d812925
using memset on a vector is just so wrong

Change-Id: Ia022f5d0200a60d993c74f2c9f29f906c6284f0f
remove unused defines

Change-Id: Ic9118c390f4ba69e245cb16032d3cbe19c741b11
first part for threaded chart rendering, fdo#81110

It is nor working correctly yet.

Change-Id: Ic592eb2f50265886ad6d97539d2c52d7c45179e6