db: Remove irrelevant references to Liquibase Pro.

Change-Id: I657d5c771b1cc67ade1fc9dbc81ee51a4985ce08
diff --git a/src/main/resources/db/changeLog-1.0.xml b/src/main/resources/db/changeLog-1.0.xml
index 132681e..24e16db 100644
--- a/src/main/resources/db/changeLog-1.0.xml
+++ b/src/main/resources/db/changeLog-1.0.xml
@@ -2,13 +2,10 @@
 <databaseChangeLog
   xmlns="http://www.liquibase.org/xml/ns/dbchangelog"
   xmlns:ext="http://www.liquibase.org/xml/ns/dbchangelog-ext"
-  xmlns:pro="http://www.liquibase.org/xml/ns/pro"
   xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
   xsi:schemaLocation="
     http://www.liquibase.org/xml/ns/dbchangelog-ext
     http://www.liquibase.org/xml/ns/dbchangelog/dbchangelog-ext.xsd
-    http://www.liquibase.org/xml/ns/pro
-    http://www.liquibase.org/xml/ns/pro/liquibase-pro-3.9.xsd
     http://www.liquibase.org/xml/ns/dbchangelog
     http://www.liquibase.org/xml/ns/dbchangelog/dbchangelog-3.9.xsd">