no :: in func decls

examples/packages/non_transitive/app/main.bro

@@ -1,5 +1,5 @@
 import "../bridge"
 
-main :: func() void {
+main func() void {
 	_ = bridge.value
 }

examples/packages/non_transitive/bridge/bridge.bro

@@ -1,5 +1,5 @@
 import "../math"
 
-read :: func() i32 {
+read func() i32 {
 	return math.value
 }