drop dependency

debian/control

@@ -10,7 +10,7 @@
 Package: python-rql
 Architecture: any
 XB-Python-Version: ${python:Versions}
-Depends: ${python:Depends}, ${misc:depends}, ${shlibs:depends}, python-egenix-mxdatetime, python-logilab-common (>= 0.35.3-1), python-constraint (>= 0.4.0-1), yapps2-runtime
+Depends: ${python:Depends}, ${misc:depends}, ${shlibs:depends}, python-logilab-common (>= 0.35.3-1), python-constraint (>= 0.4.0-1), yapps2-runtime
 Provides: ${python:Provides}
 Description: relationship query language (RQL) utilities
  A library providing the base utilities to handle RQL queries,