Remove extraneous blank lines before block-closing braces

These are useless and distracting.  We wouldn't have written the code
with them to begin with, so there's no reason to keep them.

Author: Justin Pryzby <pryzby@telsasoft.com>
Discussion: https://postgr.es/m/20220411020336.GB26620@telsasoft.com
Discussion: https://postgr.es/m/attachment/133167/0016-Extraneous-blank-lines.patch

src/backend/commands/copyto.c

@@ -97,7 +97,6 @@ typedef struct CopyToStateData
 	FmgrInfo   *out_functions;	/* lookup info for output functions */
 	MemoryContext rowcontext;	/* per-row evaluation context */
 	uint64		bytes_processed;	/* number of bytes processed so far */
-
 } CopyToStateData;
 
 /* DestReceiver for COPY (query) TO */

src/backend/commands/subscriptioncmds.c

@@ -1570,7 +1570,6 @@ DropSubscription(DropSubscriptionStmt *stmt, bool isTopLevel)
 		 */
 		if (slotname)
 			ReplicationSlotDropAtPubNode(wrconn, slotname, false);
-
 	}
 	PG_FINALLY();
 	{

src/backend/commands/tablecmds.c

@@ -945,7 +945,6 @@ DefineRelation(CreateStmt *stmt, char relkind, Oid ownerId,
 			ereport(ERROR,
 					(errcode(ERRCODE_FEATURE_NOT_SUPPORTED),
 					 errmsg("specifying a table access method is not supported on a partitioned table")));
-
 	}
 	else if (RELKIND_HAS_TABLE_AM(relkind))
 		accessMethod = default_table_access_method;
@@ -3773,7 +3772,6 @@ RenameConstraint(RenameStmt *stmt)
 									stmt->relation->inh),	/* recursive? */
 								   false,	/* recursing? */
 								   0 /* expected inhcount */ );
-
 }
 
 /*
@@ -17451,7 +17449,6 @@ ComputePartitionAttrs(ParseState *pstate, Relation rel, List *partParams, AttrNu
 							 errmsg("data type %s has no default operator class for access method \"%s\"",
 									format_type_be(atttype), "btree"),
 							 errhint("You must specify a btree operator class or define a default btree operator class for the data type.")));
-
 			}
 		}
 		else