no :: in func decls

examples/packages/file_local/app/a.bro

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

examples/packages/file_local/app/b.bro

@@ -1,8 +1,8 @@
-not_imported_here :: func() int {
+not_imported_here func() int {
 	return math.value
 }
 
-main :: func() void {
+main func() void {
 	_ = used_here()
 	_ = not_imported_here()
 }