Merge branch 'RemoveLHCbMathSimilarityTests' into 'master'

remove LHCbMath Similarity tests

See merge request !2317

Kernel/LHCbMath/tests/qmtest/lhcbmath.qms/testsimilarity_AVX.qmt

-<?xml version="1.0" ?><!DOCTYPE extension  PUBLIC '-//QM/2.3/Extension//EN'  'http://www.codesourcery.com/qm/dtds/2.3/-//qm/2.3/extension//en.dtd'>
-<!--
-    (c) Copyright 2000-2018 CERN for the benefit of the LHCb Collaboration
-
-    This software is distributed under the terms of the GNU General Public
-    Licence version 3 (GPL Version 3), copied verbatim in the file "COPYING".
-
-    In applying this licence, CERN does not waive the privileges and immunities
-    granted to it by virtue of its status as an Intergovernmental Organization
-    or submit itself to any jurisdiction.
--->
-<extension class="GaudiTest.GaudiExeTest" kind="test">
-  <argument name="program"><text>TestSimilarity.exe</text></argument>
-  <argument name="args"><set><text>AVX</text></set></argument>
-</extension>
-

Kernel/LHCbMath/tests/qmtest/lhcbmath.qms/testsimilarity_AVX2.qmt

-<?xml version="1.0" ?><!DOCTYPE extension  PUBLIC '-//QM/2.3/Extension//EN'  'http://www.codesourcery.com/qm/dtds/2.3/-//qm/2.3/extension//en.dtd'>
-<!--
-    (c) Copyright 2000-2018 CERN for the benefit of the LHCb Collaboration
-
-    This software is distributed under the terms of the GNU General Public
-    Licence version 3 (GPL Version 3), copied verbatim in the file "COPYING".
-
-    In applying this licence, CERN does not waive the privileges and immunities
-    granted to it by virtue of its status as an Intergovernmental Organization
-    or submit itself to any jurisdiction.
--->
-<extension class="GaudiTest.GaudiExeTest" kind="test">
-  <argument name="program"><text>TestSimilarity.exe</text></argument>
-  <argument name="args"><set><text>AVX2</text></set></argument>
-</extension>
-

Kernel/LHCbMath/tests/qmtest/lhcbmath.qms/testsimilarity_SSE3.qmt

-<?xml version="1.0" ?><!DOCTYPE extension  PUBLIC '-//QM/2.3/Extension//EN'  'http://www.codesourcery.com/qm/dtds/2.3/-//qm/2.3/extension//en.dtd'>
-<!--
-    (c) Copyright 2000-2018 CERN for the benefit of the LHCb Collaboration
-
-    This software is distributed under the terms of the GNU General Public
-    Licence version 3 (GPL Version 3), copied verbatim in the file "COPYING".
-
-    In applying this licence, CERN does not waive the privileges and immunities
-    granted to it by virtue of its status as an Intergovernmental Organization
-    or submit itself to any jurisdiction.
--->
-<extension class="GaudiTest.GaudiExeTest" kind="test">
-  <argument name="program"><text>TestSimilarity.exe</text></argument>
-  <argument name="args"><set><text>SSE3</text></set></argument>
-</extension>
-