build: conditionally compile bundled simdutf

The --shared-simdutf flag was introduced in nodejs#52924, but the
implementation was incomplete.

Resolves nodejs#52914

node.gyp

@@ -849,7 +849,6 @@
       'dependencies': [
         'deps/googletest/googletest.gyp:gtest_prod',
         'deps/histogram/histogram.gyp:histogram',
-        'deps/simdutf/simdutf.gyp:simdutf',
         'deps/nbytes/nbytes.gyp:nbytes',
         'node_js2c#host',
       ],
@@ -1169,7 +1168,6 @@
         'deps/googletest/googletest.gyp:gtest',
         'deps/googletest/googletest.gyp:gtest_main',
         'deps/histogram/histogram.gyp:histogram',
-        'deps/simdutf/simdutf.gyp:simdutf',
         'deps/nbytes/nbytes.gyp:nbytes',
       ],
 
@@ -1321,9 +1319,7 @@
       'target_name': 'node_js2c',
       'type': 'executable',
       'toolsets': ['host'],
-      'dependencies': [
-        'deps/simdutf/simdutf.gyp:simdutf#host',
-      ],
+      'dependencies': [],
       'include_dirs': [
         'tools',
         'src',
@@ -1336,6 +1332,9 @@
       ],
       'conditions': [
         [ 'node_shared_libuv=="false"', {
+          'dependencies': [ 'deps/simdutf/simdutf.gyp:simdutf#host' ],
+        }],
+        [ 'node_shared_simdutf=="false"', {
           'dependencies': [ 'deps/uv/uv.gyp:libuv#host' ],
         }],
         [ 'OS in "linux mac"', {
@@ -1361,7 +1360,6 @@
         '<(node_lib_target_name)',
         'deps/histogram/histogram.gyp:histogram',
         'deps/nbytes/nbytes.gyp:nbytes',
-        'deps/simdutf/simdutf.gyp:simdutf',
       ],
 
       'includes': [

node.gypi

@@ -220,6 +220,10 @@
         'dependencies': [ 'deps/simdjson/simdjson.gyp:simdjson' ],
     }],
 
+    [ 'node_shared_simdutf=="false"', {
+        'dependencies': [ 'deps/simdutf/simdutf.gyp:simdutf' ],
+    }],
+
     [ 'node_shared_brotli=="false"', {
       'dependencies': [ 'deps/brotli/brotli.gyp:brotli' ],
     }],