Remove label function and rules.pl

Change-Id: I453aef93f5496ebdd3fe51ea8cc30f4d8a37d7f5
diff --git a/project.config b/project.config
index 9c9cb22..f711f8a 100644
--- a/project.config
+++ b/project.config
@@ -59,7 +59,7 @@
 	createTag = group may-push
 	createTag = group release-managers
 [label "Code-Review"]
-	function = MaxWithBlock
+	function = NoOp
 	defaultValue = 0
 	copyMinScore = true
 	copyMaxScore = true
diff --git a/rules.pl b/rules.pl
deleted file mode 100644
index dc39c0f..0000000
--- a/rules.pl
+++ /dev/null
@@ -1,93 +0,0 @@
-% submit_rule in the actual project (go, scratch, etc.)
-% generates a list of labels and whether they are ok, needed, or can be ignored.
-% Most repos don't define a specific submit_rule; the server uses gerrit:default_submit.
-%
-% submit_filter, defined below, is applied to the output of submit_rule to adjust it.
-% The adjustments are:
-%
-%  * do_not_review_filter: add a “rejected by Do-Not-Review label”
-%    if the commit message says DO NOT REVIEW.
-%
-%  * do_not_submit_filter: add a “rejected by Do-Not-Submit label”
-%    if the commit message says DO NOT SUBMIT.
-%
-%  * trust_filter: make sure that two different people have set
-%    either Code-Review+2 or Trust+1 on the commit.
-%
-%  * self_review_filter: make sure that Code-Review+2
-%    is from someone other than the author of the commit.
-%
-% Note that if you make any mistake in this file that causes
-% a Prolog execution exception or makes submit_filter not succeed,
-% the usual signal you get in Gerrit is that labels disappear from the UI for all CLs.
-% Sometimes you get an internal error popup instead (syntax errors do this, for example).
-
-submit_filter(In, Out) :-
-	Gobot = user(5976),
-	In =.. [submit | A],
-	do_not_review_filter(Gobot, A, B),
-	do_not_submit_filter(Gobot, B, C),
-	trust_filter(Gobot, C, D),
-	self_review_filter(Gobot, D, E),
-	Out =.. [submit | E].
-
-% We don't send email if the commit message says DO NOT REVIEW,
-% so don't allow submit either.
-% Case insensitive because the mail filter rules are.
-do_not_review_filter(Gobot, In, Out) :-
-	gerrit:commit_message_matches('[Dd][Oo][ \t\r\n]+[Nn][Oo][Tt][ \t\r\n]+[Rr][Ee][Vv][Ii][Ee][Ww]'),
-	!,
-	gerrit:commit_author(Id),
-	Error = label('Do-Not-Review', reject(Id)),
-	Out = [Error | In].
-
-do_not_review_filter(Gobot, In, Out) :-
-	Out = In.
-
-% Don't allow submit of DO NOT SUBMIT commit message either.
-% Case insensitive because DO NOT REVIEW is.
-do_not_submit_filter(Gobot, In, Out) :-
-	gerrit:commit_message_matches('[Dd][Oo][ \t\r\n]+[Nn][Oo][Tt][ \t\r\n]+[Ss][Uu][Bb][Mm][Ii][Tt]'),
-	!,
-	gerrit:commit_author(Id),
-	Error = label('Do-Not-Submit', reject(Id)),
-	Out = [Error | In].
-
-do_not_submit_filter(Gobot, In, Out) :-
-	Out = In.
-
-% Check for two trusted author/reviewers, unless Self-Review-OK label set by project.
-trust_filter(Gobot, In, Out) :- has_label('Self-Review-OK', In), !, Out = In.
-trust_filter(Gobot, In, Out) :- trust2, !, Out = [label('Trusted', ok(Gobot)) | In].
-trust_filter(Gobot, In, Out) :- Out = [label('Untrusted', reject(Gobot)) | In].
-
-trust2 :- trust(U1), trust(U2), U1 \= U2.
-
-trust(U) :- gerrit:commit_label(label('Code-Review', 2), U).
-trust(U) :- gerrit:commit_label(label('Trust', 1), U).
-
-% Reject self-code-review, unless Self-Review-OK label set by project.
-%
-% NOTE: Projects (= repos) that allow self-code-review and that do not require Trust+2
-% (for example, the blog and proposal projects), can use this in rules.pl to set Self-Review-OK:
-%
-%	submit_rule(S) :-
-%		Gobot = user(5976),
-%		gerrit:default_submit(R),
-%		R =.. [submit | A],
-%		self_review_ok(Gobot, A, B),
-%		S =.. [submit | B].
-%
-%	self_review_ok(Gobot, In, Out) :- Out = [label('Self-Review-OK', ok(Gobot)) | In].
-%
-self_review_filter(Gobot, In, Out) :- has_label('Self-Review-OK', In), !, Out = In.
-self_review_filter(Gobot, In, Out) :- self_review, !, Out = [label('Self-Review', reject(Gobot)) | In].
-self_review_filter(Gobot, In, Out) :- Out = In.
-
-self_review :-
-	gerrit:change_owner(Owner),
-	gerrit:commit_label(label('Code-Review', 2), Owner).
-
-% has_label checks whether the list contains the label L.
-has_label(L, [label(L, _) | T]).
-has_label(L, [_ | T]) :- has_label(L, T).
diff --git a/rules.pl.old b/rules.pl.old
deleted file mode 100644
index 071db19..0000000
--- a/rules.pl.old
+++ /dev/null
@@ -1,18 +0,0 @@
-submit_filter(In, Out) :-
-    check_draft(In, S1),
-    check_do_not_submit(S1, Out).
-
-check_draft(S1, S2) :-
-    gerrit:commit_message_matches('DRAFT'), !,
-    S2 = [label('Found-DRAFT-In-Commit-Message', need(_)) | S1].
-
-check_draft(S1, S2) :-
-    S2 = S1.
-
-check_do_not_submit(S1, S2) :-
-    gerrit:commit_message_matches('DO NOT SUBMIT'), !,
-    S2 = [label('Found-DO-NOT-SUBMIT-In-Commit-Message', need(_)) | S1].
-
-check_do_not_submit(S1, S2) :-
-    S2 = S1.
-