remove no longer needed patches and fix tests

patches/server/Paper-config-files.patch

@@ -646,8 +646,6 @@ index 0000000000000000000000000000000000000000..00000000000000000000000000000000
 +        public boolean performUsernameValidation = true;
 +        @Comment("This setting controls if players should be able to create headless pistons.")
 +        public boolean allowHeadlessPistons = false;
-+        @Comment("This setting controls if grindstones should be able to output overstacked items (such as cursed books).")
-+        public boolean allowGrindstoneOverstacking = false;
 +        @Comment("This setting controls what compression format is used for region files.")
 +        public CompressionFormat compressionFormat = CompressionFormat.ZLIB;
 +
@@ -1367,7 +1365,8 @@ index 0000000000000000000000000000000000000000..00000000000000000000000000000000
 +        path("tnt-explosion-volume"),
 +        path("entities", "spawning", "despawn-ranges", "soft"),
 +        path("entities", "spawning", "despawn-ranges", "hard"),
-+        path("fixes", "fix-curing-zombie-villager-discount-exploit")
++        path("fixes", "fix-curing-zombie-villager-discount-exploit"),
++        path("entities", "mob-effects", "undead-immune-to-certain-effects")
 +    };
 +
 +    NodePath[] REMOVED_GLOBAL_PATHS = {
@@ -1388,7 +1387,8 @@ index 0000000000000000000000000000000000000000..00000000000000000000000000000000
 +        path("baby-zombie-movement-speed"),
 +        path("limit-player-interactions"),
 +        path("warnWhenSettingExcessiveVelocity"),
-+        path("logging", "use-rgb-for-named-text-colors")
++        path("logging", "use-rgb-for-named-text-colors"),
++        path("unsupported-settings", "allow-grindstone-overstacking")
 +    };
 +
 +}
@@ -1539,7 +1539,6 @@ index 0000000000000000000000000000000000000000..00000000000000000000000000000000
 +        public MobEffects mobEffects;
 +
 +        public class MobEffects extends ConfigurationPart {
-+            public boolean undeadImmuneToCertainEffects = true;
 +            public boolean spidersImmuneToPoisonEffect = true;
 +            public ImmuneToWitherEffect immuneToWitherEffect;
 +