Revert "go.mod: Use github.com/twmb/murmur3 for murmur3"

"I shall not commit to master without testing all architectures on the
builder" * 100 on the black board

go.mod

@@ -52,4 +52,4 @@ require (
 go 1.13
 
 // https://github.com/spaolacci/murmur3/pull/30
-replace github.com/spaolacci/murmur3 v1.1.0 => github.com/twmb/murmur3 v1.1.2
+replace github.com/spaolacci/murmur3 v1.1.0 => github.com/calmh/murmur3 v1.1.1-0.20200226160057-74e9af8f47ac

go.sum

@@ -198,8 +198,6 @@ github.com/syndtr/goleveldb v1.0.1-0.20190923125748-758128399b1d h1:gZZadD8H+fF+
 github.com/syndtr/goleveldb v1.0.1-0.20190923125748-758128399b1d/go.mod h1:9OrXJhf154huy1nPWmuSrkgjPUtUNhA+Zmy+6AESzuA=
 github.com/thejerf/suture v3.0.2+incompatible h1:GtMydYcnK4zBJ0KL6Lx9vLzl6Oozb65wh252FTBxrvM=
 github.com/thejerf/suture v3.0.2+incompatible/go.mod h1:ibKwrVj+Uzf3XZdAiNWUouPaAbSoemxOHLmJmwheEMc=
-github.com/twmb/murmur3 v1.1.2 h1:tVjU5UNOzyljJlgj986Z/St7QdTjCffaa0IdwKJfzWQ=
-github.com/twmb/murmur3 v1.1.2/go.mod h1:Qq/R7NUyOfr65zD+6Q5IHKsJLwP7exErjN6lyyq3OSQ=
 github.com/urfave/cli v1.20.0 h1:fDqGv3UG/4jbVl/QkFwEdddtEDjh/5Ov6X+0B/3bPaw=
 github.com/urfave/cli v1.20.0/go.mod h1:70zkFmudgCuE/ngEzBv17Jvp/497gISqfk5gWijbERA=
 github.com/urfave/cli v1.22.2 h1:gsqYFH8bb9ekPA12kRo0hfjngWQjkJPlN9R0N78BoUo=