Travis: Remove job using ghc-head (#279)

The latest ghc-head version is 8.7.20181217, so this job is quite
useless now.

See https://launchpad.net/~hvr/+archive/ubuntu/ghc

Author: sjakobi

.travis.yml

@@ -1,14 +1,14 @@
 # This Travis job script has been generated by a script via
 #
-#   haskell-ci '--benchmarks-jobs= >=7.10' '--ghc-head' '--installed=-containers' '--installed=-binary' 'unordered-containers.cabal'
+#   haskell-ci '--benchmarks-jobs= >=7.10' '--installed=-containers' '--installed=-binary' 'unordered-containers.cabal'
 #
 # To regenerate the script (for example after adjusting tested-with) run
 #
 #   haskell-ci regenerate
 #
 # For more information, see https://github.com/haskell-CI/haskell-ci
 #
-# version: 0.10.1
+# version: 0.10.2
 #
 version: ~> 1.0
 language: c
@@ -57,11 +57,6 @@ jobs:
     - compiler: ghc-7.8.4
       addons: {"apt":{"sources":[{"sourceline":"deb http://ppa.launchpad.net/hvr/ghc/ubuntu xenial main","key_url":"https://keyserver.ubuntu.com/pks/lookup?op=get&search=0x063dab2bdc0b3f9fcebc378bff3aeacef6f88286"}],"packages":["ghc-7.8.4","cabal-install-3.2"]}}
       os: linux
-    - compiler: ghc-head
-      addons: {"apt":{"sources":[{"sourceline":"deb http://ppa.launchpad.net/hvr/ghc/ubuntu xenial main","key_url":"https://keyserver.ubuntu.com/pks/lookup?op=get&search=0x063dab2bdc0b3f9fcebc378bff3aeacef6f88286"}],"packages":["ghc-head","cabal-install-head"]}}
-      os: linux
-  allow_failures:
-    - compiler: ghc-head
 before_install:
   - HC=$(echo "/opt/$CC/bin/ghc" | sed 's/-/\//')
   - WITHCOMPILER="-w $HC"
@@ -80,7 +75,6 @@ before_install:
   - BENCH=--enable-benchmarks
   - if [ $HCNUMVER -lt 71000 ] ; then BENCH=--disable-benchmarks ; fi
   - HEADHACKAGE=false
-  - if [ $HCNUMVER -gt 81001 ] ; then HEADHACKAGE=true ; fi
   - rm -f $CABALHOME/config
   - |
     echo "verbose: normal +nowrap +markoutput"          >> $CABALHOME/config
@@ -98,17 +92,6 @@ before_install:
     echo "  prefix: $CABALHOME"                         >> $CABALHOME/config
     echo "repository hackage.haskell.org"               >> $CABALHOME/config
     echo "  url: http://hackage.haskell.org/"           >> $CABALHOME/config
-  - |
-    if $HEADHACKAGE; then
-    echo "allow-newer: $($HCPKG list --simple-output | sed -E 's/([a-zA-Z-]+)-[0-9.]+/*:\1/g')" >> $CABALHOME/config
-    echo "repository head.hackage.ghc.haskell.org"                                        >> $CABALHOME/config
-    echo "   url: https://ghc.gitlab.haskell.org/head.hackage/"                           >> $CABALHOME/config
-    echo "   secure: True"                                                                >> $CABALHOME/config
-    echo "   root-keys: 7541f32a4ccca4f97aea3b22f5e593ba2c0267546016b992dfadcd2fe944e55d" >> $CABALHOME/config
-    echo "              26021a13b401500c8eb2761ca95c61f2d625bfef951b939a8124ed12ecf07329" >> $CABALHOME/config
-    echo "              f76d08be13e9a61a377a85e2fb63f4c5435d40f8feb3e12eb05905edb8cdea89" >> $CABALHOME/config
-    echo "   key-threshold: 3"                                                            >> $CABALHOME/config
-    fi
 install:
   - ${CABAL} --version
   - echo "$(${HC} --version) [$(${HC} --print-project-git-commit-id 2> /dev/null || echo '?')]"
@@ -172,5 +155,5 @@ script:
   - rm -f cabal.project.local
   - ${CABAL} v2-build $WITHCOMPILER --disable-tests --disable-benchmarks all
 
-# REGENDATA ("0.10.1",["--benchmarks-jobs= >=7.10","--ghc-head","--installed=-containers","--installed=-binary","unordered-containers.cabal"])
+# REGENDATA ("0.10.2",["--benchmarks-jobs= >=7.10","--installed=-containers","--installed=-binary","unordered-containers.cabal"])
 # EOF