remove dead code from sample

samplecode/SampleText.cpp

Index: samplecode/SampleText.cpp
diff --git a/samplecode/SampleText.cpp b/samplecode/SampleText.cpp
index c56ebc8b90f9f8262fdf5c9cb147192b8a3f8caa..17456b2ee988e6cbfca5d02d6caa1fba434db5a3 100644
--- a/samplecode/SampleText.cpp
+++ b/samplecode/SampleText.cpp
@@ -63,74 +63,6 @@ static void test_breakText() {
     SkASSERT(mm == width);
 }
 
-static SkRandom gRand;
-
-class SkPowerMode : public SkXfermode {
-public:
-    SkPowerMode(SkScalar exponent) { this->init(exponent); }
-
-    virtual void xfer16(uint16_t dst[], const SkPMColor src[], int count,
-                        const SkAlpha aa[]) const SK_OVERRIDE;
-
-    typedef SkFlattenable* (*Factory)(SkReadBuffer&);
-
-    SK_TO_STRING_OVERRIDE()
-    SK_DECLARE_PUBLIC_FLATTENABLE_DESERIALIZATION_PROCS(SkPowerMode)
-
-private:
-    SkScalar fExp;          // user's value
-    uint8_t fTable[256];    // cache
-
-    void init(SkScalar exponent);
-    SkPowerMode(SkReadBuffer& b) : INHERITED(b) {
-        // read the exponent
-        this->init(SkFixedToScalar(b.readFixed()));
-    }
-    virtual void flatten(SkWriteBuffer& b) const SK_OVERRIDE {
-        this->INHERITED::flatten(b);
-        b.writeFixed(SkScalarToFixed(fExp));
-    }
-
-    typedef SkXfermode INHERITED;
-};
-
-void SkPowerMode::init(SkScalar e) {
-    fExp = e;
-    float ee = SkScalarToFloat(e);
-
-    printf("------ %g\n", ee);
-    for (int i = 0; i < 256; i++) {
-        float x = i / 255.f;
-     //   printf(" %d %g", i, x);
-        x = powf(x, ee);
-     //   printf(" %g", x);
-        int xx = SkScalarRoundToInt(x * 255);
-     //   printf(" %d\n", xx);
-        fTable[i] = SkToU8(xx);
-    }
-}
-
-void SkPowerMode::xfer16(uint16_t dst[], const SkPMColor src[], int count,
-                         const SkAlpha aa[]) const {
-    for (int i = 0; i < count; i++) {
-        SkPMColor c = src[i];
-        int r = SkGetPackedR32(c);
-        int g = SkGetPackedG32(c);
-        int b = SkGetPackedB32(c);
-        r = fTable[r];
-        g = fTable[g];
-        b = fTable[b];
-        dst[i] = SkPack888ToRGB16(r, g, b);
-    }
-}
-
-#ifndef SK_IGNORE_TO_STRING
-void SkPowerMode::toString(SkString* str) const {
-    str->append("SkPowerMode: exponent ");
-    str->appendScalar(fExp);
-}
-#endif
-
 static const struct {
     const char* fName;
     uint32_t    fFlags;