Revert "linux: call g_thread_init() at relevant startup points"

build/linux/system.gyp

Index: build/linux/system.gyp
diff --git a/build/linux/system.gyp b/build/linux/system.gyp
index e10c9053f72d8c3feecd8bdf6dcd9dde7f354914..68b52be0cc1ea385a977b7b9faa5b03b078c4a5b 100644
--- a/build/linux/system.gyp
+++ b/build/linux/system.gyp
@@ -9,15 +9,15 @@
       'type': 'settings',
       'direct_dependent_settings': {
         'cflags': [
-          '<!@(pkg-config --cflags gtk+-2.0 gthread-2.0)',
+          '<!@(pkg-config --cflags gtk+-2.0)',
         ],
       },
       'link_settings': {
         'ldflags': [
-          '<!@(pkg-config --libs-only-L --libs-only-other gtk+-2.0 gthread-2.0)',
+          '<!@(pkg-config --libs-only-L --libs-only-other gtk+-2.0)',
         ],
         'libraries': [
-          '<!@(pkg-config --libs-only-l gtk+-2.0 gthread-2.0)',
+          '<!@(pkg-config --libs-only-l gtk+-2.0)',
         ],
       },
     },
@@ -107,6 +107,23 @@
       },
     },
     {
+      'target_name': 'gthread',
+      'type': 'settings',
+      'direct_dependent_settings': {
+        'cflags': [
+          '<!@(pkg-config --cflags gthread-2.0)',
+        ],
+      },
+      'link_settings': {
+        'ldflags': [
+          '<!@(pkg-config --libs-only-L --libs-only-other gthread-2.0)',
+        ],
+        'libraries': [
+          '<!@(pkg-config --libs-only-l gthread-2.0)',
+        ],
+      },
+    },
+    {
       'target_name': 'x11',
       'type': 'settings',
       'direct_dependent_settings': {