chore(progress-spinner): remove md-progress-circle alias (#3735)

Removes the deprecated `md-progress-circle` alias.

Author: crisbeto

src/examples/progress-spinner-configurable/progress-spinner-configurable-example.html

@@ -1,6 +1,6 @@
 <md-card>
   <md-card-content>
-    <h2 class="example-h2">Progress circle configuration</h2>
+    <h2 class="example-h2">Progress spinner configuration</h2>
 
     <section class="example-section">
       <label class="example-margin">Color:</label>
@@ -39,11 +39,11 @@ <h2 class="example-h2">Progress circle configuration</h2>
   <md-card-content>
     <h2 class="example-h2">Result</h2>
 
-    <md-progress-circle
+    <md-progress-spinner
         class="example-margin"
         [attr.color]="color"
         [mode]="mode"
         [value]="value">
-    </md-progress-circle>
+    </md-progress-spinner>
   </md-card-content>
 </md-card>

src/lib/core/compatibility/compatibility.ts

@@ -59,7 +59,6 @@ export const MAT_ELEMENTS_SELECTOR = `
   mat-option,
   mat-placeholder,
   mat-progress-bar,
-  mat-progress-circle,
   mat-pseudo-checkbox,
   mat-radio-button,
   mat-radio-group,
@@ -120,7 +119,6 @@ export const MD_ELEMENTS_SELECTOR = `
   md-option,
   md-placeholder,
   md-progress-bar,
-  md-progress-circle,
   md-pseudo-checkbox,
   md-radio-button,
   md-radio-group,

src/lib/progress-spinner/_progress-spinner-theme.scss

@@ -7,7 +7,7 @@
   $accent: map-get($theme, accent);
   $warn: map-get($theme, warn);
 
-  .mat-progress-spinner, .mat-progress-circle, .mat-spinner {
+  .mat-progress-spinner, .mat-spinner {
     path {
       stroke: mat-color($primary, 600);
     }

src/lib/progress-spinner/index.ts

@@ -4,7 +4,6 @@ import {
   MdProgressSpinner,
   MdSpinner,
   MdProgressSpinnerCssMatStyler,
-  MdProgressCircleCssMatStyler
 } from './progress-spinner';
 
 
@@ -14,14 +13,12 @@ import {
     MdProgressSpinner,
     MdSpinner,
     CompatibilityModule,
-    MdProgressSpinnerCssMatStyler,
-    MdProgressCircleCssMatStyler
+    MdProgressSpinnerCssMatStyler
   ],
   declarations: [
     MdProgressSpinner,
     MdSpinner,
-    MdProgressSpinnerCssMatStyler,
-    MdProgressCircleCssMatStyler
+    MdProgressSpinnerCssMatStyler
   ],
 })
 class MdProgressSpinnerModule {

src/lib/progress-spinner/progress-spinner.html

@@ -1,6 +1,6 @@
 <!--
   preserveAspectRatio of xMidYMid meet as the center of the viewport is the circle's
-  center.  The center of the circle with remain at the center of the md-progress-circle
+  center. The center of the circle will remain at the center of the md-progress-spinner
   element containing the SVG.
 -->
 <svg viewBox="0 0 100 100"

src/lib/progress-spinner/progress-spinner.ts

@@ -44,25 +44,12 @@ type EasingFn = (currentTime: number, startValue: number,
 export class MdProgressSpinnerCssMatStyler {}
 
 
-/**
- * Directive whose purpose is to add the mat- CSS styling to this selector.
- * @docs-private
- */
-@Directive({
-  selector: 'md-progress-circle, mat-progress-circle',
-  host: {
-    '[class.mat-progress-circle]': 'true'
-  }
-})
-export class MdProgressCircleCssMatStyler {}
-
-
 /**
  * <md-progress-spinner> component.
  */
 @Component({
   moduleId: module.id,
-  selector: 'md-progress-spinner, mat-progress-spinner, md-progress-circle, mat-progress-circle',
+  selector: 'md-progress-spinner, mat-progress-spinner',
   host: {
     'role': 'progressbar',
     '[attr.aria-valuemin]': '_ariaValueMin',