[intro.memory] remove stray definitions

Author: Eisenwave

source/basic.tex

@@ -3103,11 +3103,10 @@
 The number of bits in a byte is reported by the macro
 \tcode{CHAR_BIT} in the header \libheaderref{climits}.
 \end{footnote}
-the number of which is \impldef{bits in a byte}. The least
-significant bit is called the \defn{low-order bit}; the most
-significant bit is called the \defn{high-order bit}. The memory
-available to a \Cpp{} program consists of one or more sequences of
-contiguous bytes. Every byte has a unique address.
+the number of which is \impldef{bits in a byte}.
+The memory available to a \Cpp{} program consists of one or more sequences of
+contiguous bytes.
+Every byte has a unique address.
 
 \pnum
 \begin{note}