Remove liballoc compiler-builtins f16/f128 disable patch

We already build with the compiler-builtins-no-f16-f128 feature enabled.

patches/0029-stdlib-Disable-f16-and-f128-in-compiler-builtins.patch

@@ -1,26 +0,0 @@
-From 175d52c5e1779764b66777db1e6f172c2dc365ff Mon Sep 17 00:00:00 2001
-From: bjorn3 <17426603+bjorn3@users.noreply.github.com>
-Date: Fri, 9 Aug 2024 15:44:51 +0000
-Subject: [PATCH] Disable f16 and f128 in compiler-builtins
-
----
- library/liballoc/Cargo.toml | 2 +-
- 1 file changed, 1 insertion(+), 1 deletion(-)
-
-diff --git a/library/liballoc/Cargo.toml b/library/liballoc/Cargo.toml
-index 7165c3e48af..968552ad435 100644
---- a/library/alloc/Cargo.toml
-+++ b/library/alloc/Cargo.toml
-@@ -11,7 +11,7 @@ test = { path = "../test" }
- bench = false
- 
- [dependencies]
- core = { path = "../core", public = true }
--compiler_builtins = { version = "=0.1.151", features = ['rustc-dep-of-std'] }
-+compiler_builtins = { version = "=0.1.151", features = ['rustc-dep-of-std', 'no-f16-f128'] }
- 
- [features]
- compiler-builtins-mem = ['compiler_builtins/mem']
--- 
-2.34.1
-

scripts/setup_rust_fork.sh

@@ -43,6 +43,7 @@ verbose-tests = false
 # disabled bootstrap will crash trying to copy llvm tools for the bootstrap
 # compiler.
 llvm-tools = false
+std-features = ["panic-unwind", "compiler-builtins-no-f16-f128"]
 
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 popd