remove references to kIndex_8_SkColorType from our tools/tests

Bug: skia:6828
Change-Id: Ib5049c28c11b7320bece20f5a0a886de8b2a4343
Reviewed-on: https://skia-review.googlesource.com/22728
Reviewed-by: Leon Scroggins <scroggo@google.com>
Reviewed-by: Florin Malita <fmalita@chromium.org>
Commit-Queue: Mike Reed <reed@google.com>
diff --git a/tests/ReadPixelsTest.cpp b/tests/ReadPixelsTest.cpp
index a30576f..f426e5f 100644
--- a/tests/ReadPixelsTest.cpp
+++ b/tests/ReadPixelsTest.cpp
@@ -503,16 +503,6 @@
         kAlpha | kRed, kAlpha | kGreen, kAlpha | kBlue, kAlpha | kBlue | kGreen | kRed, kAlpha
 };
 
-#ifdef SK_PMCOLOR_IS_RGBA
-static const SkPMColor index8colors[kNumPixels] = {
-        0xFF0000FF, 0xFF00FF00, 0xFFFF0000, 0xFFFFFFFF, 0xFF000000
-};
-#else
-static const SkPMColor index8colors[kNumPixels] = {
-        0xFFFF0000, 0xFF00FF00, 0xFF0000FF, 0xFFFFFFFF, 0xFF000000
-};
-#endif
-static const uint8_t index8[kNumPixels] = { 0, 1, 2, 3, 4 };
 static const uint8_t alpha8[kNumPixels] = { 0xFF, 0xFF, 0xFF, 0xFF, 0xFF };
 static const uint8_t gray8[kNumPixels] = { 0xFF, 0xFF, 0xFF, 0xFF, 0xFF };
 
@@ -530,12 +520,12 @@
             return rgba;
         case kBGRA_8888_SkColorType:
             return bgra;
-        case kIndex_8_SkColorType:
-            return index8;
         case kGray_8_SkColorType:
             return gray8;
         case kRGBA_F16_SkColorType:
             return f16;
+        default:
+            return nullptr; // remove me when kIndex_8 is removed from the enum
     }
 
     SkASSERT(false);
@@ -548,21 +538,14 @@
         return;
     }
 
-    sk_sp<SkColorTable> srcColorTable = (kIndex_8_SkColorType == srcInfo.colorType())
-            ? sk_make_sp<SkColorTable>(index8colors, 5)
-            : nullptr;
-    sk_sp<SkColorTable> dstColorTable = (kIndex_8_SkColorType == dstInfo.colorType())
-            ? sk_make_sp<SkColorTable>(index8colors, 5)
-            : nullptr;
-
     const void* srcPixels = five_reference_pixels(srcInfo.colorType());
-    SkPixmap srcPixmap(srcInfo, srcPixels, srcInfo.minRowBytes(), srcColorTable.get());
+    SkPixmap srcPixmap(srcInfo, srcPixels, srcInfo.minRowBytes());
     sk_sp<SkImage> src = SkImage::MakeFromRaster(srcPixmap, nullptr, nullptr);
     REPORTER_ASSERT(r, src);
 
     // Enough space for 5 pixels when color type is F16, more than enough space in other cases.
     uint64_t dstPixels[kNumPixels];
-    SkPixmap dstPixmap(dstInfo, dstPixels, dstInfo.minRowBytes(), dstColorTable.get());
+    SkPixmap dstPixmap(dstInfo, dstPixels, dstInfo.minRowBytes());
     bool success = src->readPixels(dstPixmap, 0, 0);
     REPORTER_ASSERT(r, success == SkImageInfoValidConversion(dstInfo, srcInfo));