Merge ~cjwatson/launchpad:unexport-getBuildSummariesForSnapBuildIds into launchpad:master

[Colin Watson]

Unexport Snap.getBuildSummariesForSnapBuildIds

In https://code.launchpad.net/~cjwatson/launchpad/snap-request-builds-ui/+merge/348299, I wrote "Deprecated as an exported method; can become an internal helper method once production JavaScript no longer uses it" above `Snap.getBuildSummariesForSnapBuildIds` ... and then promptly forgot about it for nearly five years. Finish this off.

[Jürgen Gmach (jugmac00)]

review: Approve

diff --git a/lib/lp/snappy/interfaces/snap.py b/lib/lp/snappy/interfaces/snap.py
index fe9b768..f8e6505 100644
--- a/lib/lp/snappy/interfaces/snap.py
+++ b/lib/lp/snappy/interfaces/snap.py
@@ -597,16 +597,6 @@ class ISnapView(Interface):
         )
     )
 
-    # XXX cjwatson 2018-06-20: Deprecated as an exported method; can become
-    # an internal helper method once production JavaScript no longer uses
-    # it.
-    @operation_parameters(
-        snap_build_ids=List(
-            title=_("A list of snap build IDs."), value_type=Int()
-        )
-    )
-    @export_read_operation()
-    @operation_for_version("devel")
     def getBuildSummariesForSnapBuildIds(snap_build_ids):
         """Return a dictionary containing a summary of the build statuses.