Some cleanup in interface kit. From unused code warnings (before I updated buildtools).

src/kits/interface/Button.cpp

@@ -177,7 +177,6 @@ BButton::Draw(BRect updateRect)
 	rgb_color buttonBgColor = tint_color(panelBgColor, B_LIGHTEN_1_TINT);
 	rgb_color lightColor;
 	rgb_color maxLightColor;
-	rgb_color maxShadowColor = tint_color(panelBgColor, B_DARKEN_MAX_TINT);
 
 	rgb_color dark1BorderColor;
 	rgb_color dark2BorderColor;

src/kits/interface/StatusBar.cpp

@@ -772,14 +772,7 @@ BStatusBar::_SetTextData(BString& text, const char* source,
 	if (text == source)
 		return;
 
-	float oldWidth;
-	if (rightAligned)
-		oldWidth = Bounds().right - fTextDivider;
-	else
-		oldWidth = fTextDivider;
-
 	bool oldHasText = _HasText();
-
 	text = source;
 
 	BString newString;
@@ -788,17 +781,6 @@ BStatusBar::_SetTextData(BString& text, const char* source,
 	else
 		newString << combineWith << text;
 
-	float newWidth = ceilf(StringWidth(newString.String()));
-		// might still be smaller in Draw(), but we use it
-		// only for the invalidation rect here
-
-	// determine which part of the view needs an update
-	float invalidateWidth = max_c(newWidth, oldWidth);
-
-	float position = 0.0;
-	if (rightAligned)
-		position = Bounds().right - invalidateWidth;
-
 	if (oldHasText != _HasText())
 		InvalidateLayout();
 

src/kits/interface/TextControl.cpp

@@ -440,7 +440,6 @@ BTextControl::Draw(BRect updateRect)
 	rgb_color noTint = ui_color(B_PANEL_BACKGROUND_COLOR);
 	rgb_color lighten1 = tint_color(noTint, B_LIGHTEN_1_TINT);
 	rgb_color lighten2 = tint_color(noTint, B_LIGHTEN_2_TINT);
-	rgb_color lightenMax = tint_color(noTint, B_LIGHTEN_MAX_TINT);
 	rgb_color darken1 = tint_color(noTint, B_DARKEN_1_TINT);
 	rgb_color darken2 = tint_color(noTint, B_DARKEN_2_TINT);
 	rgb_color darken4 = tint_color(noTint, B_DARKEN_4_TINT);

src/kits/interface/TextView.cpp

@@ -3661,12 +3661,9 @@ BTextView::_HandleAlphaKey(const char *bytes, int32 numBytes)
 		undoBuffer->InputCharacter(numBytes);
 	}
 
-	bool erase = fSelStart != fText->Length();
-
 	if (fSelStart != fSelEnd) {
 		Highlight(fSelStart, fSelEnd);
 		DeleteText(fSelStart, fSelEnd);
-		erase = true;
 	}
 
 	if (fAutoindent && numBytes == 1 && *bytes == B_ENTER) {
@@ -3706,7 +3703,6 @@ BTextView::_Refresh(int32 fromOffset, int32 toOffset, bool scroll)
 	int32 toLine = _LineAt(toOffset);
 	int32 saveFromLine = fromLine;
 	int32 saveToLine = toLine;
-	float saveLineHeight = LineHeight(fromLine);
 
 	_RecalculateLineBreaks(&fromLine, &toLine);
 
@@ -3737,12 +3733,6 @@ BTextView::_Refresh(int32 fromOffset, int32 toOffset, bool scroll)
 	fromLine = max_c(fromVisible, fromLine);
 	toLine = min_c(toLine, toVisible);
 
-	int32 drawOffset = fromOffset;
-	if (LineHeight(fromLine) != saveLineHeight
-		|| newHeight < saveHeight || fromLine < saveFromLine
-		|| fAlignment != B_ALIGN_LEFT)
-		drawOffset = (*fLines)[fromLine]->offset;
-
 	_AutoResize(false);
 
 	_RequestDrawLines(fromLine, toLine);