Remove test_getsystemticks_method.vb for now

Introduced with 060c2b9b "QA Basic: split tests
of methods in different files", but GetSystemTicks appears to routinely return
negative values.

Change-Id: Ibccdf753aea581e05e9d4e1bf551ae72dc70c959

basic/qa/basic_coverage/test_getsystemticks_method.vb

-' This file is part of the LibreOffice project.
-'
-' This Source Code Form is subject to the terms of the Mozilla Public
-' License, v. 2.0. If a copy of the MPL was not distributed with this
-' file, You can obtain one at http://mozilla.org/MPL/2.0/.
-'
-
-Function doUnitTest as Integer
-    ' GETSYSTEMTICKS
-    If ( GetSystemTicks < 0 ) Then
-        doUnitTest = 0
-    Else
-        doUnitTest = 1
-    End If
-End Function