Remove superfluous para tags and fix XML formatting per review feedback

Co-authored-by: jeffhandley <[email protected]>

Author: Copilot

xml/System.Collections.Concurrent/ConcurrentDictionary`2+AlternateLookup`1.xml

@@ -49,7 +49,7 @@
     <typeparam name="TValue">The type of the values in the dictionary.</typeparam>
     <typeparam name="TAlternateKey">The alternate type of a key for performing lookups.</typeparam>
     <summary>
-      <para>Provides a type that may be used to perform operations on a <see cref="T:System.Collections.Concurrent.ConcurrentDictionary`2" /> using a <typeparamref name="TAlternateKey" /> as a key instead of a <typeparamref name="TKey" />.</para>
+      Provides a type that may be used to perform operations on a <see cref="T:System.Collections.Concurrent.ConcurrentDictionary`2" /> using a <typeparamref name="TAlternateKey" /> as a key instead of a <typeparamref name="TKey" />.
     </summary>
     <remarks>To be added.</remarks>
   </Docs>

xml/System.Collections.Concurrent/ConcurrentDictionary`2.xml

@@ -1011,7 +1011,7 @@
       <Docs>
         <typeparam name="TAlternateKey">The alternate type of a key for performing lookups.</typeparam>
         <summary>
-          <para>Gets an instance of a type that may be used to perform operations on a <see cref="T:System.Collections.Concurrent.ConcurrentDictionary`2" /> using a <typeparamref name="TAlternateKey" /> as a key instead of a <typeparamref name="TKey" />.</para>
+          Gets an instance of a type that may be used to perform operations on a <see cref="T:System.Collections.Concurrent.ConcurrentDictionary`2" /> using a <typeparamref name="TAlternateKey" /> as a key instead of a <typeparamref name="TKey" />.
         </summary>
         <returns>The created lookup instance.</returns>
         <remarks>

xml/System.Collections.Frozen/FrozenDictionary`2+AlternateLookup`1.xml

@@ -45,7 +45,7 @@
     <typeparam name="TValue">The type of the values in the dictionary.</typeparam>
     <typeparam name="TAlternateKey">The alternate type of a key for performing lookups.</typeparam>
     <summary>
-      <para>Provides a type that may be used to perform operations on a <see cref="T:System.Collections.Frozen.FrozenDictionary`2" /> using a <typeparamref name="TAlternateKey" /> as a key instead of a <typeparamref name="TKey" />.</para>
+      Provides a type that may be used to perform operations on a <see cref="T:System.Collections.Frozen.FrozenDictionary`2" /> using a <typeparamref name="TAlternateKey" /> as a key instead of a <typeparamref name="TKey" />.
     </summary>
     <remarks>To be added.</remarks>
   </Docs>

xml/System.Collections.Frozen/FrozenDictionary`2.xml

@@ -291,7 +291,7 @@
       <Docs>
         <typeparam name="TAlternateKey">The alternate type of a key for performing lookups.</typeparam>
         <summary>
-          <para>Gets an instance of a type that may be used to perform operations on a <see cref="T:System.Collections.Frozen.FrozenDictionary`2" /> using a <typeparamref name="TAlternateKey" /> as a key instead of a <typeparamref name="TKey" />.</para>
+          Gets an instance of a type that may be used to perform operations on a <see cref="T:System.Collections.Frozen.FrozenDictionary`2" /> using a <typeparamref name="TAlternateKey" /> as a key instead of a <typeparamref name="TKey" />.
         </summary>
         <returns>The created lookup instance.</returns>
         <remarks>