Use Forge's clientSideOnly feature

Fixes the crash on dedicated servers and simplifies some code

Author: PaintNinja

forge/src/main/java/net/darkhax/tipsmod/TipsModForge.java

@@ -1,21 +1,13 @@
 package net.darkhax.tipsmod;
 
-import net.darkhax.bookshelf.api.Services;
 import net.darkhax.tipsmod.impl.Constants;
-import net.minecraftforge.fml.IExtensionPoint;
-import net.minecraftforge.fml.ModLoadingContext;
 import net.minecraftforge.fml.common.Mod;
 
 @Mod(Constants.MOD_ID)
 public class TipsModForge {
 
     public TipsModForge() {
 
-        ModLoadingContext.get().registerExtensionPoint(IExtensionPoint.DisplayTest.class, () -> new IExtensionPoint.DisplayTest(() -> IExtensionPoint.DisplayTest.IGNORESERVERONLY, (a, b) -> true));
-
-        if (Services.PLATFORM.isPhysicalClient()) {
-
-            TipsModForgeClient.init();
-        }
+        TipsModForgeClient.init();
     }
 }

forge/src/main/resources/META-INF/mods.toml

@@ -2,10 +2,10 @@ modLoader = "javafml"
 loaderVersion = "${forge_version_range}"
 license = "${mod_license}"
 issueTrackerURL = "${mod_issues}"
+clientSideOnly = true
 
 [[mods]]
 modId = "${mod_id}"
-displayTest="IGNORE_ALL_VERSION"
 updateJSONURL="https://updates.blamejared.com/get?n=${mod_id}&gv=${minecraft_version}"
 version = "${file.jarVersion}"
 displayName = "${mod_name}"