Update compiler-builtins to 0.1.115

This includes [1] which means we can remove the (nonworking)
configuration of `no-f16-f128`.

Fixes #128401.

[1]: rust-lang/compiler-builtins#652

Author: tgross35

Diff for: library/Cargo.lock

@@ -58,9 +58,9 @@ dependencies = [
 
 [[package]]
 name = "compiler_builtins"
-version = "0.1.114"
+version = "0.1.115"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "eb58b199190fcfe0846f55a3b545cd6b07a34bdd5930a476ff856f3ebcc5558a"
+checksum = "3358508f8fe5c43b1d59deef1c190287490a00cce3d7b4a3744e4a35e3f220d0"
 dependencies = [
  "cc",
  "rustc-std-workspace-core",

Diff for: library/alloc/Cargo.toml

@@ -10,10 +10,7 @@ edition = "2021"
 
 [dependencies]
 core = { path = "../core" }
-compiler_builtins = { version = "0.1.114", features = ['rustc-dep-of-std'] }
-
-[target.'cfg(not(any(target_arch = "aarch64", target_arch = "x86", target_arch = "x86_64")))'.dependencies]
-compiler_builtins = { version = "0.1.114", features = ["no-f16-f128"] }
+compiler_builtins = { version = "0.1.115", features = ['rustc-dep-of-std'] }
 
 [dev-dependencies]
 rand = { version = "0.8.5", default-features = false, features = ["alloc"] }

Diff for: library/std/Cargo.toml

@@ -17,7 +17,7 @@ cfg-if = { version = "1.0", features = ['rustc-dep-of-std'] }
 panic_unwind = { path = "../panic_unwind", optional = true }
 panic_abort = { path = "../panic_abort" }
 core = { path = "../core", public = true }
-compiler_builtins = { version = "0.1.114" }
+compiler_builtins = { version = "0.1.115" }
 profiler_builtins = { path = "../profiler_builtins", optional = true }
 unwind = { path = "../unwind" }
 hashbrown = { version = "0.14", default-features = false, features = [