Remove unused test_env.py from isolate files + fix nss path.

This is not necessary for executing tests for WebRTC.
It probably appeared in our .isolate files because of code
copied from Chromium.

BUG=
TEST=All non-baremetal trybots passing.
R=pbos@webrtc.org

Review URL: https://webrtc-codereview.appspot.com/21639004

git-svn-id: http://webrtc.googlecode.com/svn/trunk@6373 4adac7df-926f-26a2-2b94-8c16560cd09d
diff --git a/talk/libjingle.gyp b/talk/libjingle.gyp
index 9aacdfa..2182561 100755
--- a/talk/libjingle.gyp
+++ b/talk/libjingle.gyp
@@ -702,7 +702,7 @@
             'base/scoped_autorelease_pool.mm',
           ],
           'dependencies': [
-            '../net/third_party/nss/ssl.gyp:libssl',
+            '<(DEPTH)/net/third_party/nss/ssl.gyp:libssl',
           ],
           'all_dependent_settings': {
             'xcode_settings': {
diff --git a/talk/libjingle_media_unittest.isolate b/talk/libjingle_media_unittest.isolate
index 36b50b5..78d4600 100644
--- a/talk/libjingle_media_unittest.isolate
+++ b/talk/libjingle_media_unittest.isolate
@@ -29,12 +29,10 @@
     ['OS=="linux" or OS=="mac" or OS=="win"', {
       'variables': {
         'command': [
-          '../testing/test_env.py',
           '<(PRODUCT_DIR)/libjingle_media_unittest<(EXECUTABLE_SUFFIX)',
         ],
         'isolate_dependency_tracked': [
           'media/testdata/captured-320x240-2s-48.frames',
-          '../testing/test_env.py',
           '<(PRODUCT_DIR)/libjingle_media_unittest<(EXECUTABLE_SUFFIX)',
         ],
         'isolate_dependency_untracked': [
diff --git a/talk/libjingle_p2p_unittest.isolate b/talk/libjingle_p2p_unittest.isolate
index b5ad4ff..a2a7844 100644
--- a/talk/libjingle_p2p_unittest.isolate
+++ b/talk/libjingle_p2p_unittest.isolate
@@ -29,11 +29,9 @@
     ['OS=="linux" or OS=="mac" or OS=="win"', {
       'variables': {
         'command': [
-          '../testing/test_env.py',
           '<(PRODUCT_DIR)/libjingle_p2p_unittest<(EXECUTABLE_SUFFIX)',
         ],
         'isolate_dependency_tracked': [
-          '../testing/test_env.py',
           '<(PRODUCT_DIR)/libjingle_p2p_unittest<(EXECUTABLE_SUFFIX)',
         ],
         'isolate_dependency_untracked': [
diff --git a/talk/libjingle_peerconnection_unittest.isolate b/talk/libjingle_peerconnection_unittest.isolate
index e7dd687..6f07013 100644
--- a/talk/libjingle_peerconnection_unittest.isolate
+++ b/talk/libjingle_peerconnection_unittest.isolate
@@ -29,11 +29,9 @@
     ['OS=="linux" or OS=="mac" or OS=="win"', {
       'variables': {
         'command': [
-          '../testing/test_env.py',
           '<(PRODUCT_DIR)/libjingle_peerconnection_unittest<(EXECUTABLE_SUFFIX)',
         ],
         'isolate_dependency_tracked': [
-          '../testing/test_env.py',
           '<(PRODUCT_DIR)/libjingle_peerconnection_unittest<(EXECUTABLE_SUFFIX)',
         ],
         'isolate_dependency_untracked': [
diff --git a/talk/libjingle_sound_unittest.isolate b/talk/libjingle_sound_unittest.isolate
index 7166337..7217581 100644
--- a/talk/libjingle_sound_unittest.isolate
+++ b/talk/libjingle_sound_unittest.isolate
@@ -29,11 +29,9 @@
     ['OS=="linux" or OS=="mac" or OS=="win"', {
       'variables': {
         'command': [
-          '../testing/test_env.py',
           '<(PRODUCT_DIR)/libjingle_sound_unittest<(EXECUTABLE_SUFFIX)',
         ],
         'isolate_dependency_tracked': [
-          '../testing/test_env.py',
           '<(PRODUCT_DIR)/libjingle_sound_unittest<(EXECUTABLE_SUFFIX)',
         ],
         'isolate_dependency_untracked': [
diff --git a/talk/libjingle_unittest.isolate b/talk/libjingle_unittest.isolate
index e678af0..96d3a99 100644
--- a/talk/libjingle_unittest.isolate
+++ b/talk/libjingle_unittest.isolate
@@ -29,11 +29,9 @@
     ['OS=="linux" or OS=="mac" or OS=="win"', {
       'variables': {
         'command': [
-          '../testing/test_env.py',
           '<(PRODUCT_DIR)/libjingle_unittest<(EXECUTABLE_SUFFIX)',
         ],
         'isolate_dependency_tracked': [
-          '../testing/test_env.py',
           '<(PRODUCT_DIR)/libjingle_unittest<(EXECUTABLE_SUFFIX)',
         ],
         'isolate_dependency_untracked': [
diff --git a/webrtc/video_engine_tests.isolate b/webrtc/video_engine_tests.isolate
index c8ec481..fe319e5 100644
--- a/webrtc/video_engine_tests.isolate
+++ b/webrtc/video_engine_tests.isolate
@@ -20,13 +20,11 @@
     ['OS=="linux" or OS=="mac" or OS=="win"', {
       'variables': {
         'command': [
-          '../testing/test_env.py',
           '<(PRODUCT_DIR)/video_engine_tests<(EXECUTABLE_SUFFIX)',
         ],
         'isolate_dependency_tracked': [
           '../DEPS',
           '../resources/foreman_cif_short.yuv',
-          '../testing/test_env.py',
           '<(PRODUCT_DIR)/video_engine_tests<(EXECUTABLE_SUFFIX)',
         ],
         'isolate_dependency_untracked': [
diff --git a/webrtc/webrtc_perf_tests.isolate b/webrtc/webrtc_perf_tests.isolate
index 08f5cba..4ff1673 100644
--- a/webrtc/webrtc_perf_tests.isolate
+++ b/webrtc/webrtc_perf_tests.isolate
@@ -20,7 +20,6 @@
     ['OS=="linux" or OS=="mac" or OS=="win"', {
       'variables': {
         'command': [
-          '../testing/test_env.py',
           '<(PRODUCT_DIR)/webrtc_perf_tests<(EXECUTABLE_SUFFIX)',
         ],
         'isolate_dependency_tracked': [
@@ -28,7 +27,6 @@
           '../resources/foreman_cif.yuv',
           '../resources/paris_qcif.yuv',
           '../resources/voice_engine/audio_long16.pcm',
-          '../testing/test_env.py',
           '<(PRODUCT_DIR)/webrtc_perf_tests<(EXECUTABLE_SUFFIX)',
         ],
         'isolate_dependency_untracked': [