Remove Android system ICU support.

icu.gyp

Index: icu.gyp
diff --git a/icu.gyp b/icu.gyp
index 21aa82d50400d53b83e000c0315f947aa16e16b4..94ab910ed13e4e32eb6dc0578d03db25f1d3242e 100644
--- a/icu.gyp
+++ b/icu.gyp
@@ -247,17 +247,6 @@
                 },
               },
             }],
-            ['OS == "android" and use_system_stlport == 1', {
-              'target_conditions': [
-                ['_toolset == "target"', {
-                  # ICU requires RTTI, which is not present in the system's
-                  # stlport, so we have to include gabi++.
-                  'include_dirs': [
-                    '<(android_src)/abi/cpp/include',
-                  ],
-                }],
-              ],
-            }],
           ], # conditions
         },
         {
@@ -354,17 +343,6 @@
                 },
               },
             }],
-            ['OS == "android" and use_system_stlport == 1', {
-              'target_conditions': [
-                ['_toolset == "target"', {
-                  # ICU requires RTTI, which is not present in the system's
-                  # stlport, so we have to include gabi++.
-                  'include_dirs': [
-                    '<(android_src)/abi/cpp/include',
-                  ],
-                }],
-              ],
-            }],
           ], # conditions
         },
       ], # targets
@@ -375,20 +353,6 @@
           'target_name': 'system_icu',
           'type': 'none',
           'conditions': [
-            ['OS=="android"', {
-              'direct_dependent_settings': {
-                'include_dirs': [
-                  '<(android_src)/external/icu/icu4c/source/common',
-                  '<(android_src)/external/icu/icu4c/source/i18n',
-                ],
-              },
-              'link_settings': {
-                'libraries': [
-                  '-licui18n',
-                  '-licuuc',
-                ],
-              },
-            }],
             ['OS=="qnx"', {
               'link_settings': {
                 'libraries': [
@@ -397,7 +361,7 @@
                 ],
               },
             }],
-            ['OS!="android" and OS!="qnx"', {
+            ['OS!="qnx"', {
               'link_settings': {
                 'ldflags': [
                   '<!@(icu-config --ldflags)',