Remove malformed brief commands in comments (NFC) (llvm#70746)

Co-authored-by: Timm Baeder <[email protected]>

Author: mikerice1969

clang/include/clang/Basic/TargetInfo.h

@@ -1291,20 +1291,20 @@ class TargetInfo : public TransferrableTargetInfo,
     fillValidCPUList(Values);
   }
 
-  /// brief Determine whether this TargetInfo supports the given CPU name.
+  /// Determine whether this TargetInfo supports the given CPU name.
   virtual bool isValidCPUName(StringRef Name) const {
     return true;
   }
 
-  /// brief Determine whether this TargetInfo supports the given CPU name for
-  // tuning.
+  /// Determine whether this TargetInfo supports the given CPU name for
+  /// tuning.
   virtual bool isValidTuneCPUName(StringRef Name) const {
     return isValidCPUName(Name);
   }
 
   virtual ParsedTargetAttr parseTargetAttr(StringRef Str) const;
 
-  /// brief Determine whether this TargetInfo supports tune in target attribute.
+  /// Determine whether this TargetInfo supports tune in target attribute.
   virtual bool supportsTargetAttributeTune() const {
     return false;
   }

clang/include/clang/Parse/Parser.h

@@ -663,9 +663,9 @@ class Parser : public CodeCompletionHandler {
     return PrevTokLocation;
   }
 
-  ///\ brief When we are consuming a code-completion token without having
-  /// matched specific position in the grammar, provide code-completion results
-  /// based on context.
+  /// When we are consuming a code-completion token without having matched
+  /// specific position in the grammar, provide code-completion results based
+  /// on context.
   ///
   /// \returns the source location of the code-completion token.
   SourceLocation handleUnexpectedCodeCompletionToken();