Revert "Update the first letter when the first line is changed by adding a new text at its start."

Source/core/rendering/RenderBlock.cpp

Index: Source/core/rendering/RenderBlock.cpp
diff --git a/Source/core/rendering/RenderBlock.cpp b/Source/core/rendering/RenderBlock.cpp
index 04a991a4281ae61601e20fdb2e9d65588954d534..6ceab0403b2968b51fbfdbaa3d420dcced3e7de4 100644
--- a/Source/core/rendering/RenderBlock.cpp
+++ b/Source/core/rendering/RenderBlock.cpp
@@ -28,7 +28,6 @@
 #include "core/accessibility/AXObjectCache.h"
 #include "core/dom/Document.h"
 #include "core/dom/Element.h"
-#include "core/dom/Text.h"
 #include "core/events/OverflowEvent.h"
 #include "core/dom/shadow/ShadowRoot.h"
 #include "core/editing/Editor.h"
@@ -4868,6 +4867,8 @@ void RenderBlock::updateFirstLetter()
     if (style()->styleType() == FIRST_LETTER)
         return;
 
+    // FIXME: We need to destroy the first-letter object if it is no longer the first child. Need to find
+    // an efficient way to check for that situation though before implementing anything.
     RenderObject* firstLetterBlock = findFirstLetterBlock(this);
     if (!firstLetterBlock)
         return;
@@ -4904,29 +4905,9 @@ void RenderBlock::updateFirstLetter()
     if (!currChild)
         return;
 
+    // If the child already has style, then it has already been created, so we just want
+    // to update it.
     if (currChild->parent()->style()->styleType() == FIRST_LETTER) {
-        // Check if the text fragment(currChild) for the first-letter is not related to the remainingText.
-        RenderObject* remainingText = currChild->parent()->nextSibling();
-        if (remainingText && remainingText->node() && currChild->node() != remainingText->node()) {
-            if (!remainingText->isText() || remainingText->isBR())
-                return;
-
-            if (RenderBoxModelObject* oldFirstLetter = currChild->parent()->isBoxModelObject() ? toRenderBoxModelObject(currChild->parent()) : 0) {
-                if (RenderTextFragment* oldRemainingText = oldFirstLetter->firstLetterRemainingText()) {
-                    LayoutStateDisabler layoutStateDisabler(view());
-                    // Destroy the text fragment for the old first-letter and update oldRemainingText with its DOM text.
-                    oldRemainingText->setText(toText(oldRemainingText->node())->data().impl());
-
-                    if (unsigned newLength = firstLetterLength(toRenderText(remainingText)->originalText()))
-                        createFirstLetterRenderer(firstLetterBlock, remainingText, newLength);
-                }
-            }
-
-            return;
-        }
-
-        // If the child already has style, then it has already been created, so we just want
-        // to update it.
         updateFirstLetterStyle(firstLetterBlock, currChild);
         return;
     }