Remove MIPS support

runtime/BUILD.gn

 # Copyright (c) 2014, the Dart project authors.  Please see the AUTHORS file
 # for details. All rights reserved. Use of this source code is governed by a
 # BSD-style license that can be found in the LICENSE file.
 
 import("runtime_args.gni")
 
 declare_args() {
   # Instead of using is_debug, we introduce a different flag for specifying a
   # Debug build of Dart so that clients can still use a Release build of Dart
   # while themselves doing a Debug build.
   dart_debug = false
 
   # Set the runtime mode. This affects how the runtime is built and what
   # features it has. Valid values are:
   # 'develop' (the default) - VM is built to run as a JIT with all development
   # features enabled.
   # 'profile' - The VM is built to run with AOT compiled code with only the
   # CPU profiling features enabled.
   # 'release' - The VM is built to run with AOT compiled code with no developer
   # features enabled.
   #
   # These settings are only used for Flutter, at the moment. A standalone build
   # of the Dart VM should leave this set to "develop", and should set
   # 'is_debug', 'is_release', or 'is_product'.
   dart_runtime_mode = "develop"
 
   # Explicitly set the target architecture in case of precompilation. Leaving
   # this unspecified results in automatic target architecture detection.
-  # Available options are: arm, arm64, mips, x64 and ia32
+  # Available options are: arm, arm64, x64, and ia32
   dart_target_arch = ""
 
   # The optimization level to use for debug builds.
   dart_debug_optimization_level = "2"
 }
 
 config("dart_public_config") {
   include_dirs = [ "." ]
 }
 
@@ skipping 58 matching lines @@
       defines += [ "TARGET_ARCH_ARM" ]
     } else if (dart_target_arch == "armv6" || dart_target_arch == "simarmv6") {
       defines += [ "TARGET_ARCH_ARM" ]
       defines += [ "TARGET_ARCH_ARM_6" ]
     } else if (dart_target_arch == "armv5te" ||
                dart_target_arch == "simarmv5te") {
       defines += [ "TARGET_ARCH_ARM" ]
       defines += [ "TARGET_ARCH_ARM_5TE" ]
     } else if (dart_target_arch == "arm64" || dart_target_arch == "simarm64") {
       defines += [ "TARGET_ARCH_ARM64" ]
-    } else if (dart_target_arch == "mips" || dart_target_arch == "simmips") {
-      defines += [ "TARGET_ARCH_MIPS" ]
     } else if (dart_target_arch == "x64") {
       defines += [ "TARGET_ARCH_X64" ]
     } else if (dart_target_arch == "ia32") {
       defines += [ "TARGET_ARCH_IA32" ]
     } else if (dart_target_arch == "dbc" || dart_target_arch == "simdbc" ||
                dart_target_arch == "simdbc64" ||
                dart_target_arch == "armsimdbc" ||
                dart_target_arch == "armsimdbc64") {
       defines += [ "TARGET_ARCH_DBC" ]
       defines += [ "USING_SIMULATOR" ]
@@ skipping 176 matching lines @@
     "third_party/double-conversion/src:libdouble_conversion",
     "vm:libdart_lib_jit",
     "vm:libdart_lib_nosnapshot_with_precompiler",
     "vm:libdart_vm_jit",
     "vm:libdart_vm_nosnapshot_with_precompiler",
   ]
   sources = [
     "vm/libdart_dependency_helper.cc",
   ]
 }