dashboard: remove known issue for GO386=softfloat builder

The builder is producing expected results.

Fixes golang/go#41840.
For golang/go#41848.

Change-Id: I08de0457b5ead7ac5dcc15edb95517f0f3e377fe
Reviewed-on: https://go-review.googlesource.com/c/build/+/261097
Trust: Dmitri Shuralyov <dmitshur@golang.org>
Run-TryBot: Dmitri Shuralyov <dmitshur@golang.org>
TryBot-Result: Go Bot <gobot@golang.org>
Reviewed-by: Keith Randall <khr@golang.org>
diff --git a/dashboard/builders.go b/dashboard/builders.go
index c85d8a7..6b38225 100644
--- a/dashboard/builders.go
+++ b/dashboard/builders.go
@@ -1473,7 +1473,6 @@
 			// GO386=softfloat is added in Go 1.16 (golang.org/issue/41848).
 			return atLeastGo1(goBranch, 16) && (repo == "go" || repo == "crypto")
 		},
-		KnownIssue: 41840,
 		GoDeps: []string{
 			"04b8a9fea57e37589d82410281f22ebde0027808", // CL 260017, "all: implement GO386=softfloat".
 		},