Fix ExtrudeGeometry comments that were copied from TextGeometry

src/extras/geometries/ExtrudeGeometry.js

@@ -5,15 +5,13 @@
  *
  * parameters = {
  *
- *  size: <float>, // size of the text
- *  height: <float>, // thickness to extrude text
  *  curveSegments: <int>, // number of points on the curves
  *  steps: <int>, // number of points for z-side extrusions / used for subdividing segements of extrude spline too
- *  amount: <int>, // Amount
+ *  amount: <int>, // Depth to extrude the shape
  *
  *  bevelEnabled: <bool>, // turn on bevel
- *  bevelThickness: <float>, // how deep into text bevel goes
- *  bevelSize: <float>, // how far from text outline is bevel
+ *  bevelThickness: <float>, // how deep into the original shape bevel goes
+ *  bevelSize: <float>, // how far from shape outline is bevel
  *  bevelSegments: <int>, // number of bevel layers
  *
  *  extrudePath: <THREE.CurvePath> // 3d spline path to extrude shape along. (creates Frames if .frames aren't defined)