examples: Remove build tags from sub-packages

.travis.yml

@@ -39,7 +39,6 @@ script:
   - test -z $(gofmt -s -l $GOPATH/src/github.com/hajimehoshi/ebiten)
   - go build -tags example -v github.com/hajimehoshi/ebiten/examples/...
   - go test -v github.com/hajimehoshi/ebiten/...
-  - go test -tags=example -v github.com/hajimehoshi/ebiten/examples/...
   - gopherjs build --tags example -v github.com/hajimehoshi/ebiten/examples/blocks
 
 # Looks like testing GL on node is hard.

examples/2048/2048/board.go

@@ -12,8 +12,6 @@
 // See the License for the specific language governing permissions and
 // limitations under the License.
 
-// +build example
-
 package twenty48
 
 import (

examples/2048/2048/colors.go

@@ -12,8 +12,6 @@
 // See the License for the specific language governing permissions and
 // limitations under the License.
 
-// +build example
-
 package twenty48
 
 import (

examples/2048/2048/game.go

@@ -12,8 +12,6 @@
 // See the License for the specific language governing permissions and
 // limitations under the License.
 
-// +build example
-
 package twenty48
 
 import (

examples/2048/2048/input.go

@@ -12,8 +12,6 @@
 // See the License for the specific language governing permissions and
 // limitations under the License.
 
-// +build example
-
 package twenty48
 
 import (

examples/2048/2048/tile.go

@@ -12,8 +12,6 @@
 // See the License for the specific language governing permissions and
 // limitations under the License.
 
-// +build example
-
 package twenty48
 
 import (

examples/2048/2048/tile_test.go

@@ -12,8 +12,6 @@
 // See the License for the specific language governing permissions and
 // limitations under the License.
 
-// +build example
-
 package twenty48_test
 
 import (

examples/blocks/blocks/field.go

@@ -12,8 +12,6 @@
 // See the License for the specific language governing permissions and
 // limitations under the License.
 
-// +build example
-
 package blocks
 
 import (

examples/blocks/blocks/font.go

@@ -12,8 +12,6 @@
 // See the License for the specific language governing permissions and
 // limitations under the License.
 
-// +build example
-
 package blocks
 
 import (

examples/blocks/blocks/game.go

@@ -12,8 +12,6 @@
 // See the License for the specific language governing permissions and
 // limitations under the License.
 
-// +build example
-
 package blocks
 
 import (

examples/blocks/blocks/gamepad.go

@@ -12,8 +12,6 @@
 // See the License for the specific language governing permissions and
 // limitations under the License.
 
-// +build example
-
 package blocks
 
 import (

examples/blocks/blocks/gamepadscene.go

@@ -12,8 +12,6 @@
 // See the License for the specific language governing permissions and
 // limitations under the License.
 
-// +build example
-
 package blocks
 
 import (

examples/blocks/blocks/gamescene.go

@@ -12,8 +12,6 @@
 // See the License for the specific language governing permissions and
 // limitations under the License.
 
-// +build example
-
 package blocks
 
 import (

examples/blocks/blocks/input.go

@@ -12,8 +12,6 @@
 // See the License for the specific language governing permissions and
 // limitations under the License.
 
-// +build example
-
 package blocks
 
 import (

examples/blocks/blocks/piece.go

@@ -12,8 +12,6 @@
 // See the License for the specific language governing permissions and
 // limitations under the License.
 
-// +build example
-
 package blocks
 
 import (

examples/blocks/blocks/scenemanager.go

@@ -12,8 +12,6 @@
 // See the License for the specific language governing permissions and
 // limitations under the License.
 
-// +build example
-
 package blocks
 
 import (

examples/blocks/blocks/titlescene.go

@@ -12,8 +12,6 @@
 // See the License for the specific language governing permissions and
 // limitations under the License.
 
-// +build example
-
 package blocks
 
 import (

examples/keyboard/keyboard/gen.go

@@ -202,8 +202,6 @@ const keyRectTmpl = `{{.License}}
 
 // Code generated by gen.go using 'go generate'. DO NOT EDIT.
 
-{{.BuildTags}}
-
 package keyboard
 
 import (
@@ -239,7 +237,6 @@ func outputKeyRectsGo(k map[string]image.Rectangle) error {
 		return err
 	}
 	return tmpl.Execute(f, map[string]interface{}{
-		"BuildTags":   "// +build example",
 		"License":     license,
 		"KeyRectsMap": k,
 	})

examples/keyboard/keyboard/keyrects.go

@@ -14,8 +14,6 @@
 
 // Code generated by gen.go using 'go generate'. DO NOT EDIT.
 
-// +build example
-
 package keyboard
 
 import (