Fixing opensource build - surface_em.* got removed.

Change on 2014/12/09 by nnoble <nnoble@google.com>
-------------
Created by MOE: http://code.google.com/p/moe-java
MOE_MIGRATED_REVID=81737241

Makefile

@@ -666,7 +666,6 @@ LIBGRPC_SRC = \
     src/core/surface/server.c \
     src/core/surface/server_chttp2.c \
     src/core/surface/server_create.c \
-    src/core/surface/surface_em.c \
     src/core/transport/chttp2/alpn.c \
     src/core/transport/chttp2/bin_encoder.c \
     src/core/transport/chttp2/frame_data.c \
@@ -1581,7 +1580,6 @@ LIBGRPC_UNSECURE_SRC = \
     src/core/surface/server.c \
     src/core/surface/server_chttp2.c \
     src/core/surface/server_create.c \
-    src/core/surface/surface_em.c \
     src/core/transport/chttp2/alpn.c \
     src/core/transport/chttp2/bin_encoder.c \
     src/core/transport/chttp2/frame_data.c \

build.json

@@ -153,7 +153,6 @@
         "src/core/surface/server.c",
         "src/core/surface/server_chttp2.c",
         "src/core/surface/server_create.c",
-        "src/core/surface/surface_em.c",
         "src/core/transport/chttp2/alpn.c",
         "src/core/transport/chttp2/bin_encoder.c",
         "src/core/transport/chttp2/frame_data.c",
@@ -236,7 +235,6 @@
         "src/core/surface/event_string.h",
         "src/core/surface/lame_client.h",
         "src/core/surface/server.h",
-        "src/core/surface/surface_em.h",
         "src/core/surface/surface_trace.h",
         "src/core/transport/chttp2/bin_encoder.h",
         "src/core/transport/chttp2/frame_data.h",

vsprojects/vs2013/grpc.vcxproj

@@ -131,7 +131,6 @@
     <ClInclude Include="..\..\src\core\surface\event_string.h" />
     <ClInclude Include="..\..\src\core\surface\lame_client.h" />
     <ClInclude Include="..\..\src\core\surface\server.h" />
-    <ClInclude Include="..\..\src\core\surface\surface_em.h" />
     <ClInclude Include="..\..\src\core\surface\surface_trace.h" />
     <ClInclude Include="..\..\src\core\transport\chttp2\bin_encoder.h" />
     <ClInclude Include="..\..\src\core\transport\chttp2\frame_data.h" />
@@ -278,8 +277,6 @@
     </ClCompile>
     <ClCompile Include="..\..\src\core\surface\server_create.c">
     </ClCompile>
-    <ClCompile Include="..\..\src\core\surface\surface_em.c">
-    </ClCompile>
     <ClCompile Include="..\..\src\core\transport\chttp2\alpn.c">
     </ClCompile>
     <ClCompile Include="..\..\src\core\transport\chttp2\bin_encoder.c">