Remove meaninglist restrict qualifiers

The use of the restrict qualifier in casts is meaningless, so remove
them.

Reviewed-by: Tom Lane <tgl@sss.pgh.pa.us>
Discussion: https://www.postgresql.org/message-id/flat/0e3d8644-c01d-4374-86ea-9f0a987981f0%40eisentraut.org

src/include/libpq/pqformat.h

@@ -48,7 +48,7 @@ pq_writeint8(StringInfoData *pg_restrict buf, uint8 i)
 	uint8		ni = i;
 
 	Assert(buf->len + (int) sizeof(uint8) <= buf->maxlen);
-	memcpy((char *pg_restrict) (buf->data + buf->len), &ni, sizeof(uint8));
+	memcpy(buf->data + buf->len, &ni, sizeof(uint8));
 	buf->len += sizeof(uint8);
 }
 
@@ -62,7 +62,7 @@ pq_writeint16(StringInfoData *pg_restrict buf, uint16 i)
 	uint16		ni = pg_hton16(i);
 
 	Assert(buf->len + (int) sizeof(uint16) <= buf->maxlen);
-	memcpy((char *pg_restrict) (buf->data + buf->len), &ni, sizeof(uint16));
+	memcpy(buf->data + buf->len, &ni, sizeof(uint16));
 	buf->len += sizeof(uint16);
 }
 
@@ -76,7 +76,7 @@ pq_writeint32(StringInfoData *pg_restrict buf, uint32 i)
 	uint32		ni = pg_hton32(i);
 
 	Assert(buf->len + (int) sizeof(uint32) <= buf->maxlen);
-	memcpy((char *pg_restrict) (buf->data + buf->len), &ni, sizeof(uint32));
+	memcpy(buf->data + buf->len, &ni, sizeof(uint32));
 	buf->len += sizeof(uint32);
 }
 
@@ -90,7 +90,7 @@ pq_writeint64(StringInfoData *pg_restrict buf, uint64 i)
 	uint64		ni = pg_hton64(i);
 
 	Assert(buf->len + (int) sizeof(uint64) <= buf->maxlen);
-	memcpy((char *pg_restrict) (buf->data + buf->len), &ni, sizeof(uint64));
+	memcpy(buf->data + buf->len, &ni, sizeof(uint64));
 	buf->len += sizeof(uint64);
 }
 
@@ -116,7 +116,7 @@ pq_writestring(StringInfoData *pg_restrict buf, const char *pg_restrict str)
 
 	Assert(buf->len + slen + 1 <= buf->maxlen);
 
-	memcpy(((char *pg_restrict) buf->data + buf->len), p, slen + 1);
+	memcpy(buf->data + buf->len, p, slen + 1);
 	buf->len += slen + 1;
 
 	if (p != str)