Remove patch 0031

_assets/patches/geth/0031-fix-discovery-loop-when-no-seeds.patch

@@ -1,24 +0,0 @@
-diff --git a/p2p/discv5/net.go b/p2p/discv5/net.go
-index d0eae28f..25e75d50 100644
---- a/p2p/discv5/net.go
-+++ b/p2p/discv5/net.go
-@@ -641,7 +641,18 @@ loop:
- 				}()
- 			} else {
- 				refreshDone = make(chan struct{})
--				net.refresh(refreshDone)
-+
-+				done := make(chan struct{})
-+				net.refresh(done)
-+				<-done
-+
-+				// Refresh again only if there are no seeds.
-+				// Also, sleep for some time to prevent from
-+				// executing too often.
-+				go func() {
-+					time.Sleep(time.Millisecond * 100)
-+					close(refreshDone)
-+				}()
- 			}
- 		}
- 	}

vendor/github.com/ethereum/go-ethereum/p2p/discv5/net.go

@@ -641,18 +641,7 @@ loop:
 				}()
 			} else {
 				refreshDone = make(chan struct{})
-
-				done := make(chan struct{})
-				net.refresh(done)
-				<-done
-
-				// Refresh again only if there are no seeds.
-				// Also, sleep for some time to prevent from
-				// executing too often.
-				go func() {
-					time.Sleep(time.Millisecond * 100)
-					close(refreshDone)
-				}()
+				net.refresh(refreshDone)
 			}
 		}
 	}