Switch default float-abi for ARM linux from softfp to hard

All the ARM linux builders already specify this, and
armhf is the now the default for both Ubuntu and Debian.

Followup cleanup cl for the bots:
https://codereview.chromium.org/1141643004/

BUG=308256

Review URL: https://codereview.chromium.org/1140503004

Cr-Commit-Position: refs/heads/master@{#330316}

build/common.gypi

@@ -2311,9 +2311,12 @@
           }, {
             'arm_fpu%': 'vfpv3-d16',
           }],
+          ['OS=="android"', {
+            'arm_float_abi%': 'softfp',
+          }, {
+            'arm_float_abi%': 'hard',
+          }],
         ],
-        # Change the default to hard once the armhf transition is complete.
-        'arm_float_abi%': 'softfp',
         'arm_thumb%': 1,
       }],
 

native_client_sdk/src/build_tools/build_artifacts.py

@@ -210,7 +210,6 @@ def GypNinjaBuild(arch, gyp_py_script, gyp_file, targets, out_dir):
     gyp_defines.append('target_arch=%s' % arch)
     if arch == 'arm':
       gyp_env['GYP_CROSSCOMPILE'] = '1'
-      gyp_defines += ['arm_float_abi=hard']
       if options.no_arm_trusted:
         gyp_defines.append('disable_cross_trusted=1')
   if PLATFORM == 'mac':

native_client_sdk/src/build_tools/build_sdk.py

@@ -561,7 +561,6 @@ def GypNinjaBuild(arch, gyp_py_script, gyp_file, targets,
     gyp_defines.append('target_arch=%s' % arch)
     if arch == 'arm':
       gyp_env['GYP_CROSSCOMPILE'] = '1'
-      gyp_defines.append('arm_float_abi=hard')
       if options.no_arm_trusted:
         gyp_defines.append('disable_cross_trusted=1')
   if getos.GetPlatform() == 'mac':

native_client_sdk/src/build_tools/tests/build_artifacts_test.py

@@ -189,8 +189,7 @@ class GypNinjaPosixTestCase(BasePosixTestCase):
                'GYP_CROSSCOMPILE': '1',
                'GYP_GENERATORS': 'ninja',
                'GYP_DEFINES': ' '.join(self.gyp_defines_base +
-                                       ['target_arch=arm',
-                                        'arm_float_abi=hard']),
+                                       ['target_arch=arm']),
              }),
         call(['ninja', '-C', 'out_dir/Release', 'target'], cwd='src_dir')
     ])
@@ -209,7 +208,6 @@ class GypNinjaPosixTestCase(BasePosixTestCase):
                'GYP_GENERATORS': 'ninja',
                'GYP_DEFINES': ' '.join(self.gyp_defines_base +
                                        ['target_arch=arm',
-                                        'arm_float_abi=hard',
                                         'disable_cross_trusted=1']),
              }),
         call(['ninja', '-C', 'out_dir/Release', 'target'], cwd='src_dir')