[basic.def.odr] Remove vestigial comma

Author: opensdh

source/basic.tex

@@ -575,7 +575,7 @@
 \item default template argument\iref{temp.param}
 \end{itemize}
 in a program provided that
-each definition appears in a different translation unit, and
+each definition appears in a different translation unit and
 the definitions satisfy the following requirements.
 Given such an entity \tcode{D} defined in more than one translation unit,
 for all definitions of \tcode{D}, or,