Don't use libglib2.0 while building appimage and exclude it from the recipe.

Closes: #1941

packages/AppImage/PyBitmessage.yml

@@ -16,6 +16,7 @@ ingredients:
     - python-six
     - sni-qt
   exclude:
+    - libglib2.0-0
     - libmng2
     - libncursesw5
     - libqt4-declarative
@@ -31,5 +32,6 @@ ingredients:
     - ../deb_dist/pybitmessage_*_amd64.deb
 
 script:
+  - rm -rf usr/share/glib-2.0/schemas
   - cp usr/share/icons/hicolor/scalable/apps/pybitmessage.svg .
   - mv usr/bin/python2.7 usr/bin/python2

packages/docker/Dockerfile.bionic

@@ -27,7 +27,6 @@ RUN apt-get install -yq --no-install-suggests --no-install-recommends \
     dh-apparmor debhelper dh-python python-msgpack python-qt4 git python-stdeb \
     python-all-dev python-crypto python-psutil \
     fakeroot python-pytest python3-wheel \
-    libglib2.0-dev \
     # Code quality
     pylint python-pycodestyle python3-pycodestyle pycodestyle python-flake8 \
     python3-flake8 flake8 python-pyflakes python3-pyflakes pyflakes pyflakes3 \