iOS: update patch

Remove the previous workaround for BrowserEngine.
This should fix the following error:

    ld64.lld: error: undefined symbol: be_memory_inline_jit_restrict_rwx_to_rw_with_witness_impl

Disable BrowserEngineCore JIT on Catalyst
This should fix the following error:

    error: 'be_memory_inline_jit_restrict_rwx_to_rx_with_witness' is unavailable: not available on macCatalyst

These errors were likely triggered by the recent upgrade to XCode 26.0

Author: bblanchon

patches/ios/v8.patch

@@ -1,17 +1,12 @@
-diff --git a/BUILD.gn b/BUILD.gn
-index 1e3f0181dfb..977ff43a9f6 100644
---- a/BUILD.gn
-+++ b/BUILD.gn
-@@ -4939,12 +4939,6 @@ v8_header_set("v8_internal_headers") {
+diff --git a/src/base/build_config.h b/src/base/build_config.h
+index ee745539dfd..188f8d8c6de 100644
+--- a/src/base/build_config.h
++++ b/src/base/build_config.h
+@@ -45,6 +45,7 @@
 
-   frameworks = []
- 
--  # BrowserEngineKit only exists on iOS itself, not on tvOS and other
--  # iOS-derived platforms, so we need to check `target_platform` here.
--  if (is_ios && target_platform == "iphoneos") {
--    frameworks += [ "BrowserEngineKit.framework" ]
--  }
--
-   public_deps = [
-     ":torque_runtime_support",
-     ":v8_flags",
+ // BrowserEngineCore JIT write protect is only available on iOS 17.4 and later.
+ #if defined(V8_HOST_ARCH_ARM64) && defined(V8_OS_IOS) && \
++    !defined(TARGET_OS_MACCATALYST) && \
+     defined(__IPHONE_17_4) &&                            \
+     __IPHONE_OS_VERSION_MIN_REQUIRED >= __IPHONE_17_4
+ #define V8_HAS_BECORE_JIT_WRITE_PROTECT 1