Remove superfluous mentions of "the byte sequence contained in" a byte sequence

Author: twiss

spec/Overview.html

@@ -12253,7 +12253,7 @@ <h4>Operations</h4>
                       <ol>
                         <li>
                           <p>
-                            Let |data| be the [= byte sequence =] contained in |keyData|.
+                            Let |data| be |keyData|.
                           </p>
                         </li>
                         <li>
@@ -12795,7 +12795,7 @@ <h4>Operations</h4>
                       <ol>
                         <li>
                           <p>
-                            Let |data| be the [= byte sequence =] contained in |keyData|.
+                            Let |data| be |keyData|.
                           </p>
                         </li>
                         <li>
@@ -13421,7 +13421,7 @@ <h4>Operations</h4>
                       <ol>
                         <li>
                           <p>
-                            Let |data| be the [= byte sequence =] contained in |keyData|.
+                            Let |data| be |keyData|.
                           </p>
                         </li>
                         <li>
@@ -13907,13 +13907,12 @@ <h4>Operations</h4>
                       <ol>
                         <li>
                           <p>
-                            Let |data| be the [= byte sequence =] contained in |keyData|.
+                            Let |data| be |keyData|.
                           </p>
                         </li>
                         <li>
                           <p>
                             If the length in bits of |data| is not 128, 192 or 256
-
                             then [= exception/throw =] a
                             {{DataError}}.
                           </p>
@@ -14467,7 +14466,7 @@ <h4>Operations</h4>
                       <ol>
                         <li>
                           <p>
-                            Let |data| be the [= byte sequence =] contained in |keyData|.
+                            Let |data| be |keyData|.
                           </p>
                         </li>
                         <li>