Revert "mipsel: build: Work around MIPS floating point ABI passing in…

… LTO"

This reverts commit e084d0f.

src/build/config/compiler/BUILD.gn

@@ -1334,14 +1334,6 @@ config("compiler_cpu_abi") {
       }
 
       cflags += [ "-m${mips_float_abi}-float" ]
-
-      # Fix float ABI information not being passed in LLVM bitcode for LTO
-      # and link failure with -mdouble-float being incorrectly used by default
-      # while the bitcode was compiled with -msoft-float.
-      # See https://discourse.llvm.org/t/myterious-soft-float-output-in-lto-cache/70753
-      if (!is_debug && use_thin_lto && is_a_target_toolchain && mips_float_abi == "soft") {
-        ldflags += [ "-Wl,-mllvm,-mattr=+soft-float" ]
-      }
     } else if (current_cpu == "mips" && !is_nacl) {
       ldflags += [ "-Wl,--hash-style=sysv" ]
       if (custom_toolchain == "") {
@@ -1387,14 +1379,6 @@ config("compiler_cpu_abi") {
       }
 
       cflags += [ "-m${mips_float_abi}-float" ]
-
-      # Fix float ABI information not being passed in LLVM bitcode for LTO
-      # and link failure with -mdouble-float being incorrectly used by default
-      # while the bitcode was compiled with -msoft-float.
-      # See https://discourse.llvm.org/t/myterious-soft-float-output-in-lto-cache/70753
-      if (!is_debug && use_thin_lto && is_a_target_toolchain && mips_float_abi == "soft") {
-        ldflags += [ "-Wl,-mllvm,-mattr=+soft-float" ]
-      }
     } else if (current_cpu == "mips64el") {
       cflags += [ "-D__SANE_USERSPACE_TYPES__" ]
       ldflags += [ "-Wl,--hash-style=sysv" ]