Revert "gitlab: disable accelerated zlib for s390x"

This reverts commit 309df6ac.
With Ilya's 'multifd: Copy pages before compressing them with zlib'
in the latest migration series, this shouldn't be a problem any more.

Suggested-by: Peter Maydell <peter.maydell@linaro.org>
Signed-off-by: Dr. David Alan Gilbert <dgilbert@redhat.com>
Reviewed-by: Thomas Huth <thuth@redhat.com>

.gitlab-ci.d/custom-runners/ubuntu-20.04-s390x.yml

@@ -8,8 +8,6 @@ ubuntu-20.04-s390x-all-linux-static:
  tags:
  - ubuntu_20.04
  - s390x
- variables:
-    DFLTCC: 0
  rules:
  - if: '$CI_PROJECT_NAMESPACE == "qemu-project" && $CI_COMMIT_BRANCH =~ /^staging/'
  - if: "$S390X_RUNNER_AVAILABLE"
@@ -29,8 +27,6 @@ ubuntu-20.04-s390x-all:
  tags:
  - ubuntu_20.04
  - s390x
- variables:
-    DFLTCC: 0
  timeout: 75m
  rules:
  - if: '$CI_PROJECT_NAMESPACE == "qemu-project" && $CI_COMMIT_BRANCH =~ /^staging/'
@@ -48,8 +44,6 @@ ubuntu-20.04-s390x-alldbg:
  tags:
  - ubuntu_20.04
  - s390x
- variables:
-    DFLTCC: 0
  rules:
  - if: '$CI_PROJECT_NAMESPACE == "qemu-project" && $CI_COMMIT_BRANCH =~ /^staging/'
    when: manual
@@ -71,8 +65,6 @@ ubuntu-20.04-s390x-clang:
  tags:
  - ubuntu_20.04
  - s390x
- variables:
-    DFLTCC: 0
  rules:
  - if: '$CI_PROJECT_NAMESPACE == "qemu-project" && $CI_COMMIT_BRANCH =~ /^staging/'
    when: manual
@@ -93,8 +85,6 @@ ubuntu-20.04-s390x-tci:
  tags:
  - ubuntu_20.04
  - s390x
- variables:
-    DFLTCC: 0
  rules:
  - if: '$CI_PROJECT_NAMESPACE == "qemu-project" && $CI_COMMIT_BRANCH =~ /^staging/'
    when: manual
@@ -114,8 +104,6 @@ ubuntu-20.04-s390x-notcg:
  tags:
  - ubuntu_20.04
  - s390x
- variables:
-    DFLTCC: 0
  rules:
  - if: '$CI_PROJECT_NAMESPACE == "qemu-project" && $CI_COMMIT_BRANCH =~ /^staging/'
    when: manual

.travis.yml

@@ -218,7 +218,6 @@ jobs:
         - TEST_CMD="make check check-tcg V=1"
         - CONFIG="--disable-containers --target-list=${MAIN_SOFTMMU_TARGETS},s390x-linux-user"
         - UNRELIABLE=true
-        - DFLTCC=0
       script:
         - BUILD_RC=0 && make -j${JOBS} || BUILD_RC=$?
         - |
@@ -258,7 +257,7 @@ jobs:
       env:
         - CONFIG="--disable-containers --audio-drv-list=sdl --disable-user
                   --target-list-exclude=${MAIN_SOFTMMU_TARGETS}"
-        - DFLTCC=0
+
     - name: "[s390x] GCC (user)"
       arch: s390x
       dist: focal
@@ -270,7 +269,7 @@ jobs:
           - ninja-build
       env:
         - CONFIG="--disable-containers --disable-system"
-        - DFLTCC=0
+
     - name: "[s390x] Clang (disable-tcg)"
       arch: s390x
       dist: focal
@@ -304,4 +303,3 @@ jobs:
         - CONFIG="--disable-containers --disable-tcg --enable-kvm
                   --disable-tools --host-cc=clang --cxx=clang++"
         - UNRELIABLE=true
-        - DFLTCC=0