Clean up inline jit permissions macros

https://bugs.webkit.org/show_bug.cgi?id=270937
rdar://124558039

Reviewed by Wenson Hsieh.

Clean up inline jit permissions macros.

* Source/WTF/wtf/PlatformUse.h:

Canonical link: https://commits.webkit.org/276061@main

Source/WTF/wtf/PlatformUse.h

@@ -425,10 +425,8 @@
 #define USE_CORE_TEXT_VARIATIONS_CLAMPING_WORKAROUND 1
 #endif
 
-// FIXME: Once this is forwarded to 18+, we should remove the max check.
 #if PLATFORM(IOS) && !PLATFORM(IOS_FAMILY_SIMULATOR) \
-    && __IPHONE_OS_VERSION_MAX_ALLOWED >= 170400 \
-    && __IPHONE_OS_VERSION_MAX_ALLOWED < 180000
+    && __IPHONE_OS_VERSION_MAX_ALLOWED >= 170400
 #if CPU(ARM64E)
 #define USE_INLINE_JIT_PERMISSIONS_API 1
 #endif