Remove grpc watch functionality (#2549)

This was added, but didn't see any use. For a large, complex chunk of
code we should have some users of it.

Remove all watch functionally from plugins, servers and packages.

Fixes: #2548

Signed-off-by: Miek Gieben <miek@miek.nl>

1 files changed, 0 insertions, 86 deletions

diff --git a/plugin/kubernetes/xfr_test.go b/plugin/kubernetes/xfr_test.go
index db55aa8ed..1fb3e0b43 100644
--- a/plugin/kubernetes/xfr_test.go
+++ b/plugin/kubernetes/xfr_test.go
@@ -5,7 +5,6 @@ import (
 	"strings"
 	"testing"
 
-	"github.com/coredns/coredns/plugin/kubernetes/object"
 	"github.com/coredns/coredns/plugin/pkg/dnstest"
 	"github.com/coredns/coredns/plugin/test"
 
@@ -142,88 +141,3 @@ func difference(testRRs []dns.RR, gotRRs []dns.RR) []dns.RR {
 	}
 	return foundRRs
 }
-
-func TestEndpointsEquivalent(t *testing.T) {
-	epA := object.Endpoints{
-		Subsets: []object.EndpointSubset{{
-			Addresses: []object.EndpointAddress{{IP: "1.2.3.4", Hostname: "foo"}},
-		}},
-	}
-	epB := object.Endpoints{
-		Subsets: []object.EndpointSubset{{
-			Addresses: []object.EndpointAddress{{IP: "1.2.3.4", Hostname: "foo"}},
-		}},
-	}
-	epC := object.Endpoints{
-		Subsets: []object.EndpointSubset{{
-			Addresses: []object.EndpointAddress{{IP: "1.2.3.5", Hostname: "foo"}},
-		}},
-	}
-	epD := object.Endpoints{
-		Subsets: []object.EndpointSubset{{
-			Addresses: []object.EndpointAddress{{IP: "1.2.3.5", Hostname: "foo"}},
-		},
-			{
-				Addresses: []object.EndpointAddress{{IP: "1.2.2.2", Hostname: "foofoo"}},
-			}},
-	}
-	epE := object.Endpoints{
-		Subsets: []object.EndpointSubset{{
-			Addresses: []object.EndpointAddress{{IP: "1.2.3.5", Hostname: "foo"}, {IP: "1.1.1.1"}},
-		}},
-	}
-	epF := object.Endpoints{
-		Subsets: []object.EndpointSubset{{
-			Addresses: []object.EndpointAddress{{IP: "1.2.3.4", Hostname: "foofoo"}},
-		}},
-	}
-	epG := object.Endpoints{
-		Subsets: []object.EndpointSubset{{
-			Addresses: []object.EndpointAddress{{IP: "1.2.3.4", Hostname: "foo"}},
-			Ports:     []object.EndpointPort{{Name: "http", Port: 80, Protocol: "TCP"}},
-		}},
-	}
-	epH := object.Endpoints{
-		Subsets: []object.EndpointSubset{{
-			Addresses: []object.EndpointAddress{{IP: "1.2.3.4", Hostname: "foo"}},
-			Ports:     []object.EndpointPort{{Name: "newportname", Port: 80, Protocol: "TCP"}},
-		}},
-	}
-	epI := object.Endpoints{
-		Subsets: []object.EndpointSubset{{
-			Addresses: []object.EndpointAddress{{IP: "1.2.3.4", Hostname: "foo"}},
-			Ports:     []object.EndpointPort{{Name: "http", Port: 8080, Protocol: "TCP"}},
-		}},
-	}
-	epJ := object.Endpoints{
-		Subsets: []object.EndpointSubset{{
-			Addresses: []object.EndpointAddress{{IP: "1.2.3.4", Hostname: "foo"}},
-			Ports:     []object.EndpointPort{{Name: "http", Port: 80, Protocol: "UDP"}},
-		}},
-	}
-
-	tests := []struct {
-		equiv bool
-		a     *object.Endpoints
-		b     *object.Endpoints
-	}{
-		{true, &epA, &epB},
-		{false, &epA, &epC},
-		{false, &epA, &epD},
-		{false, &epA, &epE},
-		{false, &epA, &epF},
-		{false, &epF, &epG},
-		{false, &epG, &epH},
-		{false, &epG, &epI},
-		{false, &epG, &epJ},
-	}
-
-	for i, tc := range tests {
-		if tc.equiv && !endpointsEquivalent(tc.a, tc.b) {
-			t.Errorf("Test %d: expected endpoints to be equivalent and they are not.", i)
-		}
-		if !tc.equiv && endpointsEquivalent(tc.a, tc.b) {
-			t.Errorf("Test %d: expected endpoints to be seen as different but they were not.", i)
-		}
-	}
-}