fix: emphasis and strikethrough position do not need add line offset

Author: galaxian85

lib/rules_inline/emphasis.js

@@ -2,9 +2,6 @@
 //
 'use strict';
 
-var getLineOffset  = require('../common/utils').getLineOffset;
-
-
 // Insert each marker as a separate text token, and add it to delimiter list
 //
 module.exports.tokenize = function emphasis(state, silent) {
@@ -107,7 +104,7 @@ function postProcess(state, delimiters) {
     token.nesting = 1;
     token.markup  = isStrong ? ch + ch : ch;
     token.content = '';
-    token.position = startDelim.position + getLineOffset(state, startDelim.token);
+    token.position = startDelim.position;
 
     token         = state.tokens[endDelim.token];
     token.type    = isStrong ? 'strong_close' : 'em_close';

lib/rules_inline/strikethrough.js

@@ -2,8 +2,6 @@
 //
 'use strict';
 
-var getLineOffset  = require('../common/utils').getLineOffset;
-
 // Insert each marker as a separate text token, and add it to delimiter list
 //
 module.exports.tokenize = function strikethrough(state, silent) {
@@ -76,7 +74,7 @@ function postProcess(state, delimiters) {
     token.nesting = 1;
     token.markup  = '~~';
     token.content = '';
-    token.position = startDelim.position + getLineOffset(state, startDelim.token);
+    token.position = startDelim.position;
 
     token         = state.tokens[endDelim.token];
     token.type    = 's_close';