travis.yml: Drop the default softmmu builds

The total runtime of all Travis jobs is very long and we are testing
all softmmu targets in the gitlab-CI already - so we can speed up the
Travis testing a little bit by not testing the softmmu targets here
anymore.

Signed-off-by: Thomas Huth <thuth@redhat.com>
Signed-off-by: Alex Bennée <alex.bennee@linaro.org>
Reviewed-by: Daniel P. Berrangé <berrange@redhat.com>
Reviewed-by: Cleber Rosa <crosa@redhat.com>
Acked-by: Alex Bennée <alex.bennee@linaro.org>
Acked-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
Message-Id: <20200918103430.297167-5-thuth@redhat.com>
Message-Id: <20200925154027.12672-6-alex.bennee@linaro.org>

.travis.yml

@@ -123,20 +123,6 @@ jobs:
         - CONFIG="--disable-system --static"
         - CACHE_NAME="${TRAVIS_BRANCH}-linux-gcc-default"
 
-
-    # we split the system builds as it takes a while to build them all
-    - name: "GCC (main-softmmu)"
-      env:
-        - CONFIG="--disable-user --target-list=${MAIN_SOFTMMU_TARGETS}"
-        - CACHE_NAME="${TRAVIS_BRANCH}-linux-gcc-default"
-
-
-    - name: "GCC (other-softmmu)"
-      env:
-       - CONFIG="--disable-user --target-list-exclude=${MAIN_SOFTMMU_TARGETS}"
-        - CACHE_NAME="${TRAVIS_BRANCH}-linux-gcc-default"
-
-
     # Just build tools and run minimal unit and softfloat checks
     - name: "GCC check-unit and check-softfloat"
       env: