remove unused Description methods in listparsers

These virtual methods are implemented in hidden classes, so we can drop
them without breaking the ABI.

Git-Dch: Ignore

apt-pkg/deb/deblistparser.cc

@@ -235,24 +235,6 @@ bool debListParser::NewVersion(pkgCache::VerIterator &Ver)
    return true;
 }
 									/*}}}*/
-// ListParser::Description - Return the description string		/*{{{*/
-// ---------------------------------------------------------------------
-/* This is to return the string describing the package in debian
-   form. If this returns the blank string then the entry is assumed to
-   only describe package properties */
-string debListParser::Description(std::string const &lang)
-{
-   return Description(StringView(lang)).to_string();
-}
-
-StringView debListParser::Description(StringView lang)
-{
-   if (lang.empty())
-      return Section.Find("Description");
-   else
-      return Section.Find(string("Description-").append(lang.data(), lang.size()));
-}
-									/*}}}*/
 // ListParser::AvailableDescriptionLanguages				/*{{{*/
 std::vector<std::string> debListParser::AvailableDescriptionLanguages()
 {
@@ -287,7 +269,7 @@ MD5SumValue debListParser::Description_md5()
    StringView const value = Section.Find("Description-md5");
    if (value.empty() == true)
    {
-      StringView const desc = Description(StringView());
+      StringView const desc = Section.Find("Description");
       if (desc == "\n")
 	 return MD5SumValue();
 

apt-pkg/deb/deblistparser.h

@@ -73,10 +73,6 @@ class APT_HIDDEN debListParser : public pkgCacheListParser
    virtual bool ArchitectureAll() APT_OVERRIDE;
    virtual std::string Version() APT_OVERRIDE;
    virtual bool NewVersion(pkgCache::VerIterator &Ver) APT_OVERRIDE;
-   virtual std::string Description(std::string const &lang) APT_OVERRIDE;
-#ifdef APT_PKG_EXPOSE_STRING_VIEW
-   APT::StringView Description(APT::StringView lang);
-#endif
    virtual std::vector<std::string> AvailableDescriptionLanguages() APT_OVERRIDE;
    virtual MD5SumValue Description_md5() APT_OVERRIDE;
    virtual unsigned short VersionHash() APT_OVERRIDE;

apt-pkg/edsp/edsplistparser.cc

@@ -54,13 +54,9 @@ bool edspListParser::NewVersion(pkgCache::VerIterator &Ver)
 // ListParser::Description - Return the description string		/*{{{*/
 // ---------------------------------------------------------------------
 /* Sorry, no description for the resolvers… */
-std::string edspListParser::Description()
+std::vector<std::string> edspListParser::AvailableDescriptionLanguages()
 {
-   return "";
-}
-std::string edspListParser::DescriptionLanguage()
-{
-   return "";
+   return {};
 }
 MD5SumValue edspListParser::Description_md5()
 {

apt-pkg/edsp/edsplistparser.h

@@ -31,8 +31,7 @@ class APT_HIDDEN edspListParser : public debListParser
    edspListParserPrivate * const d;
    public:
    virtual bool NewVersion(pkgCache::VerIterator &Ver) APT_OVERRIDE;
-   virtual std::string Description();
-   virtual std::string DescriptionLanguage();
+   virtual std::vector<std::string> AvailableDescriptionLanguages() APT_OVERRIDE;
    virtual MD5SumValue Description_md5() APT_OVERRIDE;
    virtual unsigned short VersionHash() APT_OVERRIDE;
 

apt-pkg/pkgcachegen.h

@@ -213,7 +213,6 @@ class APT_HIDDEN pkgCacheListParser
    virtual bool ArchitectureAll() = 0;
    virtual std::string Version() = 0;
    virtual bool NewVersion(pkgCache::VerIterator &Ver) = 0;
-   virtual std::string Description(std::string const &lang) = 0;
    virtual std::vector<std::string> AvailableDescriptionLanguages() = 0;
    virtual MD5SumValue Description_md5() = 0;
    virtual unsigned short VersionHash() = 0;