Remove some unused fields and methods in excuse

In the unsat_deps case, it was used to update a field in the excuse,
but the field was never read anywhere.

Signed-off-by: Niels Thykier <niels@thykier.net>

britney.py

@@ -1067,8 +1067,6 @@ class Britney(object):
                 # if no package can satisfy the dependency, add this information to the excuse
                 if len(packages) == 0:
                     excuse.addhtml("%s/%s unsatisfiable %s: %s" % (pkg, arch, type, block_txt.strip()))
-                    if arch not in self.options.break_arches.split():
-                        excuse.add_unsat_dep(arch)
                     continue
 
                 # for the solving packages, update the excuse to add the dependencies

excuse.py

@@ -44,8 +44,6 @@ class Excuse(object):
         self.name = name
         self.ver = ("-", "-")
         self.maint = None
-        self.pri = None
-        self.date = None
         self.urgency = None
         self.daysold = None
         self.mindays = None
@@ -57,7 +55,6 @@ class Excuse(object):
         self.deps = {}
         self.sane_deps = []
         self.break_deps = []
-        self.unsat_deps = {}
         self.bugs = []
         self.htmlline = []
 
@@ -90,14 +87,6 @@ class Excuse(object):
         """Set the section of the package"""
         self.section = section
 
-    def set_priority(self, pri):
-        """Set the priority of the package"""
-        self.pri = pri
-
-    def set_date(self, date):
-        """Set the date of upload of the package"""
-        self.date = date
-
     def set_urgency(self, date):
         """Set the urgency of upload of the package"""
         self.urgency = date
@@ -116,10 +105,6 @@ class Excuse(object):
         if (name, arch) not in self.break_deps:
             self.break_deps.append( (name, arch) )
 
-    def add_unsat_dep(self, arch):
-        """Add a flag for unsatisfied dependencies"""
-        self.unsat_deps[arch] = True
-
     def invalidate_dep(self, name):
         """Invalidate dependency"""
         if name not in self.invalid_deps: self.invalid_deps.append(name)