Remove unused functions.

These apparently should have never been committed; an alternative
approach was implemented on the same commit (413bacb) where they
first appeared.

src/table/io/FitsSchemaInputMapper.cc

@@ -36,29 +36,6 @@ struct SetFitsSchemaString {
     std::string const & _v;
 };
 
-void addOldFluxSlotAliases(AliasMap & aliases, std::string const & prefix) {
-    aliases.set(prefix + "_flux", prefix);
-    aliases.set(prefix + "_fluxSigma", prefix + "_err");
-    aliases.set(prefix + "_flag", prefix + "_flags");
-}
-
-void addOldCentroidSlotAliases(AliasMap & aliases, std::string const & prefix) {
-    aliases.set(prefix + "_xSigma", prefix + "_err_xSigma");
-    aliases.set(prefix + "_ySigma", prefix + "_err_ySigma");
-    aliases.set(prefix + "_x_y_Cov", prefix + "_err_x_y_Cov");
-    aliases.set(prefix + "_flag", prefix + "_flags");
-}
-
-void addOldShapeSlotAliases(AliasMap & aliases, std::string const & prefix) {
-    aliases.set(prefix + "_xxSigma", prefix + "_err_xxSigma");
-    aliases.set(prefix + "_yySigma", prefix + "_err_yySigma");
-    aliases.set(prefix + "_xySigma", prefix + "_err_xySigma");
-    aliases.set(prefix + "_xx_yy_Cov", prefix + "_err_xx_yy_Cov");
-    aliases.set(prefix + "_xx_xy_Cov", prefix + "_err_xx_xy_Cov");
-    aliases.set(prefix + "_yy_xy_Cov", prefix + "_err_yy_xy_Cov");
-    aliases.set(prefix + "_flag", prefix + "_flags");
-}
-
 } // anonymous
 
 class FitsSchemaInputMapper::Impl {