[LNT] Removed `0x` checking for offsets in profile assembly

[kpdev42]

Summary

This logic has been added in https://reviews.llvm.org/D110141
It seems some objdump implementations do not produce 0x before hex offsets.
Assume all regular offsets are hex as before, but relative offsets started with # are dec.

[kpdev42]

Ping

[cmatthews]

Seems fine? LGTM.

lnt/server/ui/static/lnt_profile.js

 CFG.prototype = {
     // The following method will have different implementations depending
     // on the profiler, or kind of profiling input.
     convertToAddress: function (addressString, addressCurrent) {
       // If the address starts with '#' it is a relative one
       // and should be processed differently
       var isRelative = addressString.startsWith('#');
       var charOffset = (isRelative ? 1 : 0);
-      var base = (addressString.substring(charOffset).startsWith('0x') ? 16 : 10);
+      var base = (isRelative ? 10 : 16);
       if (isRelative)
           return addressCurrent + parseInt(addressString.substring(1), base);
       else
           return parseInt(addressString, base);
     },
 
     parseDisassembly: function(counter) {
         var instructions = [];