Fix broken .travis.yml file

.travis.yml

@@ -1,14 +1,3 @@
-##############################################################################
-# Travis version specific build environment specification
-##############################################################################
-
-# The "precise" build environment on Travis is in the process of being decommissioned
-# see https://blog.travis-ci.com/2017-08-31-trusty-as-default-status
-# The "precise=true"+"sudo=required" environment seems to lack IPv6 support.
-# According to some tests, all "sudo=required" environments do not support IPv6, see 
-# https://github.com/travis-ci/travis-ci/issues/8361#issuecomment-328263113
-#
-
 
 ##############################################################################
 # Project specific settings
@@ -652,21 +641,10 @@ matrix:
       NO_CACHING=NO
       ALLOW_WARNINGS=YES
 
-
- Remove Lua build, until someone knows how to fix the CMake files
-
-  - dist: trusty
-    sudo: required
+  -
     os: linux
     compiler: clang
-    addons:
-      apt:
-        sources:
-          - ubuntu-toolchain-r-test
-          - llvm-toolchain-precise-3.8
-        packages:
-          - clang-3.8
-     env:
+    env:
       idx=18
       N=Clang3.8-Linux-Complete-NoLua-Debug
       MATRIX_EVAL="CC=clang-3.8 && CXX=clang++-3.8"