build: remove broken x32 arch support

I added support for x32 back in 2014 but it's been in a state of
disrepair ever since, not in the least because it was never a fully
supported architecture in upstream V8.

V8 dropped x32 support entirely in or around 2018 so the removal from
Node's build system is long overdue.

Refs: #40576

common.gypi

@@ -103,7 +103,7 @@
         'v8_base': '<(PRODUCT_DIR)/libv8_snapshot.a',
       }],
       # V8 pointer compression only supports 64bit architectures.
-      ['target_arch in "arm ia32 mips mipsel ppc x32"', {
+      ['target_arch in "arm ia32 mips mipsel ppc"', {
         'v8_enable_pointer_compression': 0,
         'v8_enable_31bit_smis_on_64bit_arch': 0,
       }],
@@ -414,10 +414,6 @@
             'cflags': [ '-m32' ],
             'ldflags': [ '-m32' ],
           }],
-          [ 'target_arch=="x32"', {
-            'cflags': [ '-mx32' ],
-            'ldflags': [ '-mx32' ],
-          }],
           [ 'target_arch=="x64"', {
             'cflags': [ '-m64' ],
             'ldflags': [ '-m64' ],

configure.py

@@ -47,8 +47,7 @@
 valid_os = ('win', 'mac', 'solaris', 'freebsd', 'openbsd', 'linux',
             'android', 'aix', 'cloudabi')
 valid_arch = ('arm', 'arm64', 'ia32', 'mips', 'mipsel', 'mips64el', 'ppc',
-              'ppc64', 'x32','x64', 'x86', 'x86_64', 's390x', 'riscv64',
-              'loong64')
+              'ppc64', 'x64', 'x86', 'x86_64', 's390x', 'riscv64', 'loong64')
 valid_arm_float_abi = ('soft', 'softfp', 'hard')
 valid_arm_fpu = ('vfp', 'vfpv3', 'vfpv3-d16', 'neon')
 valid_mips_arch = ('loongson', 'r1', 'r2', 'r6', 'rx')

deps/openssl/config/Makefile

@@ -11,7 +11,7 @@ PERL    = perl
 # Supported architecture list
 ASM_ARCHS = aix-gcc aix64-gcc-as BSD-x86 BSD-x86_64 \
 darwin64-x86_64-cc darwin-i386-cc darwin64-arm64-cc linux-aarch64 \
-linux-armv4 linux-elf linux-x32 linux-x86_64 linux-ppc \
+linux-armv4 linux-elf linux-x86_64 linux-ppc \
 linux-ppc64 linux-ppc64le linux32-s390x linux64-s390x linux64-mips64\
 solaris-x86-gcc solaris64-x86_64-gcc VC-WIN64A VC-WIN32