Core/Spells:

* modernized more mage spell scripts
* handle missing Hypothermia part of Ice Block
* incorporated Glyph of Ice Block's, Glyph of Polymorph's and Glyph of Icy Vein's effects into scripts for the related spell instead of using procs
* dropped deprecated code for Frost Ward and Fire Ward

sql/updates/world/4.3.4/2023_01_30_00_world.sql

@@ -0,0 +1,12 @@
+DELETE FROM `spell_script_names` WHERE `ScriptName` IN 
+('spell_mage_fire_frost_ward',
+'spell_mage_glyph_of_ice_block',
+'spell_mage_ice_block',
+'spell_mage_glyph_of_icy_veins',
+'spell_mage_glyph_of_polymorph');
+
+INSERT INTO `spell_script_names` (`spell_id`, `ScriptName`) VALUES
+(45438, 'spell_mage_ice_block'),
+(12472, 'spell_mage_icy_veins');
+
+DELETE FROM `spell_proc` WHERE `SpellId` IN (56372, 56374, 56375);