Remove hashmap.cc in vcproj files.

vsprojects/libprotobuf-lite.vcproj

diff --git a/vsprojects/libprotobuf-lite.vcproj b/vsprojects/libprotobuf-lite.vcproj
index 144a814..2966c97 100644
--- a/vsprojects/libprotobuf-lite.vcproj
+++ b/vsprojects/libprotobuf-lite.vcproj
@@ -240,10 +240,6 @@
 				>
 			</File>
 			<File
-				RelativePath="..\src\google\protobuf\stubs\hash.cc"
-				>
-			</File>
-			<File
 				RelativePath="..\src\google\protobuf\message_lite.cc"
 				>
 			</File>

vsprojects/libprotobuf.vcproj

diff --git a/vsprojects/libprotobuf.vcproj b/vsprojects/libprotobuf.vcproj
index 462f642..65bd6ab 100644
--- a/vsprojects/libprotobuf.vcproj
+++ b/vsprojects/libprotobuf.vcproj
@@ -344,10 +344,6 @@
 				>
 			</File>
 			<File
-				RelativePath="..\src\google\protobuf\stubs\hash.cc"
-				>
-			</File>
-			<File
 				RelativePath="..\src\google\protobuf\compiler\importer.cc"
 				>
 			</File>