Remove obsolete C-API interface

Author: mgreter

Makefile.conf

@@ -33,7 +33,6 @@ SOURCES = \
 	sass_values.cpp \
 	sass_context.cpp \
 	sass_functions.cpp \
-	sass_interface.cpp \
 	sass2scss.cpp \
 	source_map.cpp \
 	to_c.cpp \

include/sass/interface.h

@@ -5,7 +5,6 @@
     <ClInclude Include="$(LIBSASS_INCLUDES_DIR)\sass\base.h" />
     <ClInclude Include="$(LIBSASS_INCLUDES_DIR)\sass\context.h" />
     <ClInclude Include="$(LIBSASS_INCLUDES_DIR)\sass\functions.h" />
-    <ClInclude Include="$(LIBSASS_INCLUDES_DIR)\sass\interface.h" />
     <ClInclude Include="$(LIBSASS_INCLUDES_DIR)\sass\values.h" />
     <ClInclude Include="$(LIBSASS_INCLUDES_DIR)\sass\version.h" />
     <ClInclude Include="$(LIBSASS_INCLUDES_DIR)\sass\version.h.in" />
@@ -97,7 +96,6 @@
     <ClCompile Include="$(LIBSASS_SRC_DIR)\prelexer.cpp" />
     <ClCompile Include="$(LIBSASS_SRC_DIR)\remove_placeholders.cpp" />
     <ClCompile Include="$(LIBSASS_SRC_DIR)\sass.cpp" />
-    <ClCompile Include="$(LIBSASS_SRC_DIR)\sass_interface.cpp" />
     <ClCompile Include="$(LIBSASS_SRC_DIR)\sass_context.cpp" />
     <ClCompile Include="$(LIBSASS_SRC_DIR)\sass_functions.cpp" />
     <ClCompile Include="$(LIBSASS_SRC_DIR)\sass_util.cpp" />

src/sass_interface.cpp

@@ -34,9 +34,6 @@
     <ClInclude Include="$(LIBSASS_INCLUDES_DIR)\sass\functions.h">
       <Filter>Include Headers</Filter>
     </ClInclude>
-    <ClInclude Include="$(LIBSASS_INCLUDES_DIR)\sass\interface.h">
-      <Filter>Include Headers</Filter>
-    </ClInclude>
     <ClInclude Include="$(LIBSASS_INCLUDES_DIR)\sass\values.h">
       <Filter>Include Headers</Filter>
     </ClInclude>
@@ -302,9 +299,6 @@
     <ClCompile Include="$(LIBSASS_SRC_DIR)\sass.cpp">
       <Filter>Sources</Filter>
     </ClCompile>
-    <ClCompile Include="$(LIBSASS_SRC_DIR)\sass_interface.cpp">
-      <Filter>Sources</Filter>
-    </ClCompile>
     <ClCompile Include="$(LIBSASS_SRC_DIR)\sass_context.cpp">
       <Filter>Sources</Filter>
     </ClCompile>