MDL-21695 Replaced grade/rangesdisplaytype.html

AMOS BEGIN
 HLP grade/rangesdisplaytype.html,[rangesdisplaytype_help,core_grades]
AMOS END

grade/report/grader/settings.php

@@ -76,7 +76,7 @@
                                                 GRADE_DISPLAY_TYPE_LETTER => $strletter)));
 
 $settings->add(new admin_setting_configselect('grade_report_rangesdisplaytype', get_string('rangesdisplaytype', 'grades'),
-                                          get_string('configrangesdisplaytype', 'grades'), GRADE_REPORT_PREFERENCE_INHERIT,
+                                          get_string('rangesdisplaytype_help', 'grades'), GRADE_REPORT_PREFERENCE_INHERIT,
                                           array(GRADE_REPORT_PREFERENCE_INHERIT => $strinherit,
                                                 GRADE_DISPLAY_TYPE_REAL => $strreal,
                                                 GRADE_DISPLAY_TYPE_PERCENTAGE => $strpercentage,

lang/en/grades.php

@@ -129,7 +129,6 @@
 $string['confighideforcedsettings'] = 'Do not show forced settings in grading UI.';
 $string['configincludescalesinaggregation'] = 'You can change whether scales are to be included as numbers in all aggregated grades across all gradebooks in all courses. CAUTION: changing this setting will force all aggregated grades to be recalculated.';
 $string['configprofilereport'] = 'Grade report used on user profile page.';
-$string['configrangesdisplaytype'] = 'Specifies how to display ranges. If Inherit is selected, the display type for each column is used.';
 $string['configshowactivityicons'] = 'Whether to show activity icons next to activity names.';
 $string['configshowaverages'] = 'Whether to show the mean for each column.';
 $string['configshowcalculations'] = 'Whether to show calculator icons near each grade item and category, tooltips over calculated items and a visual indicator that a column is calculated.';