Remove MIPS support

tools/gyp/configurations_make.gypi

 # Copyright (c) 2011, 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.
 
 {
   'variables': {
     'dart_debug_optimization_level%': '2',
   },
   'target_defaults': {
     'configurations': {
@@ skipping 239 matching lines @@
       },
 
       # ARM64 native build
       'Dart_Linux_arm64_Base': {
         'abstract': 1,
         'cflags': [
           '-O3',
         ],
       },
 
-      'Dart_Linux_simmips_Base': {
-        'abstract': 1,
-        'cflags': [
-          '-O3',
-          '-m32',
-          '-msse2',
-          '-mfpmath=sse',
-        ],
-        'ldflags': [
-          '-m32',
-        ],
-      },
-
-      # MIPS cross-build
-      'Dart_Linux_xmips_Base': {
-        'abstract': 1,
-        'target_conditions': [
-          ['_toolset=="target"', {
-            'cflags': [
-              '-EL',
-              '-march=mips32',
-              '-mhard-float',
-              '-fno-strict-overflow',
-            ],
-            'ldflags': [
-              '-EL',
-            ],
-          }],
-          ['_toolset=="host"',{
-            'cflags': [
-              '-O3',
-              '-m32',
-              '-msse2',
-              '-mfpmath=sse',
-            ],
-            'ldflags': [
-              '-m32',
-            ],
-        }]]
-      },
-
-      # These flags are needed for tcmalloc to be able to collect stack traces
-      # for heap profiling on mips.
-      'Dart_Linux_xmips_Debug': {
-        'abstract': 1,
-        'target_conditions': [
-          ['_toolset=="target"', {
-            'cflags!': [
-              '-fno-exceptions',
-            ],
-            'cflags': [
-              '-fexceptions',
-              '-funwind-tables',
-            ],
-          }],
-        ],
-      },
-
-      # These flags are needed for tcmalloc to be able to collect stack traces
-      # for heap profiling on mips.
-      'Dart_Linux_xmips_Release': {
-        'abstract': 1,
-        'target_conditions': [
-          ['_toolset=="target"', {
-            'cflags!': [
-              '-fno-exceptions',
-            ],
-            'cflags': [
-              '-fexceptions',
-              '-funwind-tables',
-            ],
-          }],
-        ],
-      },
-
-      # MIPS native build
-      'Dart_Linux_mips_Base': {
-        'abstract': 1,
-        'cflags': [
-          '-march=mips32',
-          '-mhard-float',
-          '-fno-strict-overflow',
-        ],
-      },
-
       'Dart_Linux_Debug': {
         'abstract': 1,
         'cflags': [
           '-O<(dart_debug_optimization_level)',
           '-fno-omit-frame-pointer',
           # Clang on Linux will still omit frame pointers from leaf
           # functions unless told otherwise:
           # (note this flag only works on recent GCC versions.)
           #'-mno-omit-leaf-frame-pointer',
         ],
@@ skipping 22 matching lines @@
           '-ffunction-sections',
           '-fomit-frame-pointer',
         ],
         'ldflags': [
           '-Wl,--gc-sections',
         ],
       },
     },
   },
 }