Remove Fedora support from manilla-data

Manilla was missed in the previous patch that deprecated Fedora
from the project.

Related-Bug: #1616387
Change-Id: Ib041817eaa3818cd0e86466b030b212782c074da

docker/manila/manila-data/Dockerfile.j2

@@ -6,7 +6,7 @@ MAINTAINER {{ maintainer }}
 {% import "macros.j2" as macros with context %}
 
 {% if install_type == 'binary' %}
-    {% if base_distro in ['centos', 'fedora', 'oraclelinux', 'rhel'] %}
+    {% if base_distro in ['centos', 'oraclelinux', 'rhel'] %}
 
 RUN echo '{{ install_type }} not yet available for {{ base_distro }}' \
     && /bin/false