bitbake: bb/cache: drop some unused arguments

Drop unused 'd' argument from the cache save methods, simplifying the
API.

(Bitbake rev: 81bc1f20662c39ee8db1da45b1e8c7eb64abacf3)

Signed-off-by: Markus Lehtonen <markus.lehtonen@linux.intel.com>
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>

bitbake/lib/bb/cache.py

@@ -785,7 +785,7 @@ class MultiProcessCache(object):
         data = [{}]
         return data
 
-    def save_extras(self, d):
+    def save_extras(self):
         if not self.cachefile:
             return
 
@@ -815,7 +815,7 @@ class MultiProcessCache(object):
                 if h not in dest[j]:
                     dest[j][h] = source[j][h]
 
-    def save_merge(self, d):
+    def save_merge(self):
         if not self.cachefile:
             return