Remove unreachable code that causes coverage failure

tree.go

@@ -242,13 +242,6 @@ func (n *node) insertChild(path, fullPath string, handle Handle) {
 			panic("wildcards must be named with a non-empty name in path '" + fullPath + "'")
 		}
 
-		// Check if this node has existing wildcards which would be
-		// unreachable if we insert the wildcard here
-		if n.wildChild {
-			panic("wildcard segment '" + wildcard +
-				"' conflicts with existing children in path '" + fullPath + "'")
-		}
-
 		// param
 		if wildcard[0] == ':' {
 			if i > 0 {

tree_test.go

@@ -247,6 +247,7 @@ func TestTreeWildcardConflict(t *testing.T) {
 		{"/src/foo/bar", true},
 		{"/src1/", false},
 		{"/src1/*filepath", true},
+		{"/src2/*filepath", false},
 		{"/src2*filepath", true},
 		{"/search/:query", false},
 		{"/search/invalid", false},