Remove trailing @c in macro blocks. They are not needed, and they do

some harm.

doc/Protocol-A.texi

@@ -105,7 +105,7 @@
 
 @c HTML version: make the word a link.
 @macro reqdlink {n}
-@code{@ref{\n\}}@c
+@code{@ref{\n\}}
 @unmacro linkhere
 @macro linkhere
 @end macro
@@ -119,7 +119,7 @@
 @c Info version: create @linkhere as a macro that contains a reference.
 
 @macro reqdlink {n}
-@code{\n\}@c
+@code{\n\}
 @unmacro linkhere
 @macro linkhere
 (@pxref{\n\})
@@ -174,7 +174,7 @@
 
 @c HTML version: make the word a link.
 @macro asyncdlink {n}
-@code{@ref{\n\}}@c
+@code{@ref{\n\}}
 @unmacro linkhere
 @macro linkhere
 @end macro
@@ -188,7 +188,7 @@
 @c Info version: create @linkhere as a macro that contains a reference.
 
 @macro asyncdlink {n}
-@code{\n\}@c
+@code{\n\}
 @unmacro linkhere
 @macro linkhere
 (@pxref{\n\})
@@ -222,13 +222,13 @@
 
 @ifhtml
 @macro lt {n}
-@ref{\n\}@c
+@ref{\n\}
 @end macro
 @end ifhtml
 
 @ifnothtml
 @macro lt {n}
-\n\@c
+\n\
 @end macro
 @end ifnothtml