drop VectorDimensionsT metaprogram in favor of vector_traits

(thanks to Marco Centin and Amodio Pesce)
9 jobs for drop_vectordimensionst
Status Name Job ID Coverage
  Test
passed clang-c++11 #3539
Linux

00:21:26

passed clang-c++98 #3541
Linux

00:16:29

passed gcc-c++11 #3546
Linux

00:04:21

passed gcc-c++98 #3540
Linux

00:04:10

passed macos-c++11 #3544
Apple

00:15:50

passed macos-c++98 #3545
Apple

00:08:26

canceled gcc-c++11 #3538
Linux

13:26:52

failed macos-c++11 #3542
Apple

00:00:01

failed macos-c++98 #3543
Apple

00:00:01