[envoy] Remove max limit for endpoint/locality weight (#7437)

Signed-off-by: Ruslan Nigmatullin <elessar@dropbox.com>

Mirrored from https://github.com/envoyproxy/envoy @ 1e39e303fe0bcf5695d89841df08d5cb223d3879

envoy/api/v2/endpoint/endpoint.proto

@@ -74,22 +74,15 @@ message LbEndpoint {
   // to subset the endpoints considered in cluster load balancing.
   core.Metadata metadata = 3;
 
-  // The optional load balancing weight of the upstream host, in the range 1 -
-  // 128. Envoy uses the load balancing weight in some of the built in load
+  // The optional load balancing weight of the upstream host; at least 1.
+  // Envoy uses the load balancing weight in some of the built in load
   // balancers. The load balancing weight for an endpoint is divided by the sum
   // of the weights of all endpoints in the endpoint's locality to produce a
   // percentage of traffic for the endpoint. This percentage is then further
   // weighted by the endpoint's locality's load balancing weight from
   // LocalityLbEndpoints. If unspecified, each host is presumed to have equal
   // weight in a locality.
-  //
-  // .. attention::
-  //
-  //   The limit of 128 is somewhat arbitrary, but is applied due to performance
-  //   concerns with the current implementation and can be removed when
-  //   `this issue <https://github.com/envoyproxy/envoy/issues/1285>`_ is fixed.
-  google.protobuf.UInt32Value load_balancing_weight = 4
-      [(validate.rules).uint32 = {gte: 1, lte: 128}];
+  google.protobuf.UInt32Value load_balancing_weight = 4 [(validate.rules).uint32 = {gte: 1}];
 }
 
 // A group of endpoints belonging to a Locality.
@@ -103,7 +96,7 @@ message LocalityLbEndpoints {
   // The group of endpoints belonging to the locality specified.
   repeated LbEndpoint lb_endpoints = 2 [(gogoproto.nullable) = false];
 
-  // Optional: Per priority/region/zone/sub_zone weight - range 1-128. The load
+  // Optional: Per priority/region/zone/sub_zone weight; at least 1. The load
   // balancing weight for a locality is divided by the sum of the weights of all
   // localities  at the same priority level to produce the effective percentage
   // of traffic for the locality.
@@ -113,14 +106,7 @@ message LocalityLbEndpoints {
   // configured. These weights are ignored otherwise. If no weights are
   // specified when locality weighted load balancing is enabled, the locality is
   // assigned no load.
-  //
-  // .. attention::
-  //
-  //   The limit of 128 is somewhat arbitrary, but is applied due to performance
-  //   concerns with the current implementation and can be removed when
-  //   `this issue <https://github.com/envoyproxy/envoy/issues/1285>`_ is fixed.
-  google.protobuf.UInt32Value load_balancing_weight = 3
-      [(validate.rules).uint32 = {gte: 1, lte: 128}];
+  google.protobuf.UInt32Value load_balancing_weight = 3 [(validate.rules).uint32 = {gte: 1}];
 
   // Optional: the priority for this LocalityLbEndpoints. If unspecified this will
   // default to the highest priority (0).