C/C++ overlay: Clean up cluttering comments

Author: IdrissRio

cpp/ql/lib/semmle/code/cpp/internal/Overlay.qll

@@ -21,16 +21,12 @@ private string getLocationFilePath(@location_default loc) {
 overlay[local]
 private string getSingleLocationFilePath(@element e) {
   exists(@location_default loc |
-    // @var_decl has a direct location in the var_decls relation
     var_decls(e, _, _, _, loc)
     or
-    // @fun_decl has a direct location in the fun_decls relation
     fun_decls(e, _, _, _, loc)
     or
-    // @type_decl has a direct location in the type_decls relation
     type_decls(e, _, loc)
     or
-    // @namespace_decl has a direct location in the namespace_decls relation
     namespace_decls(e, _, loc, _)
   |
     result = getLocationFilePath(loc)
@@ -43,19 +39,14 @@ private string getSingleLocationFilePath(@element e) {
 overlay[local]
 private string getMultiLocationFilePath(@element e) {
   exists(@location_default loc |
-    // @variable gets its location(s) from its @var_decl(s)
     exists(@var_decl vd | var_decls(vd, e, _, _, loc))
     or
-    // @function gets its location(s) from its @fun_decl(s)
     exists(@fun_decl fd | fun_decls(fd, e, _, _, loc))
     or
-    // @usertype gets its location(s) from its @type_decl(s)
     exists(@type_decl td | type_decls(td, e, loc))
     or
-    // @namespace gets its location(s) from its @namespace_decl(s)
     exists(@namespace_decl nd | namespace_decls(nd, e, loc, _))
     or
-    // @macroinvocation gets its location(s) from macrolocationbind
     macrolocationbind(e, loc)
   |
     result = getLocationFilePath(loc)