Deprecated redundant field in ParagraphRenderer

DEVSIX-1858

Author: yulian-gaponenko

layout/src/main/java/com/itextpdf/layout/renderer/ParagraphRenderer.java

@@ -78,6 +78,7 @@ This file is part of the iText (R) project.
  */
 public class ParagraphRenderer extends BlockRenderer {
 
+    @Deprecated
     protected float previousDescent = 0;
     protected List<LineRenderer> lines = null;
 
@@ -181,6 +182,7 @@ public LayoutResult layout(LayoutContext layoutContext) {
         float lastYLine = layoutBox.getY() + layoutBox.getHeight();
         Leading leading = this.<Leading>getProperty(Property.LEADING);
 
+        float previousDescent = 0;
         float lastLineBottomLeadingIndent = 0;
         boolean onlyOverflowedFloatsLeft = false;
         List<IRenderer> inlineFloatsOverflowedToNextPage = new ArrayList<>();