[ivi-tct] Deprecate unreferenced config.xml.crx and config.xml.wgt

They are current being used ONLY by
- doc/Web_Test_Suite_Developer_Guide.md
- doc/Web_Runtime_Crosswalk_Test_Suite_Developer_Guide.md
which shall be updated.

Historically, the config.xml.crx was used to package test suites for
Chrome/Chromium extensions as CRX Package Format. It hasn't been used
for a long time.

The config.xml.wgt was used to package test suites for Tizen platforms.
It duplicates the default config.xml
[ivi-tct][doc] Revise documents to reflect the current being code structure
[ivi-tct][behavior][xwalk-2887/1486/1489] Remove 5 TCs
Merge pull request #1443 from ibelem/behavior/xwalk-2887

[ivi-tct][behavior][xwalk-2887/1486/1489] Remove 5 TCs
[ivi-tct][wrt/behavior] Update 3 webapp

install/uninstall/launch webapp ok.
[ivi-tct][wrt][xwalk-3068] Remove one tests for geolocation
Merge pull request #1445 from ibelem/wrt/sp03-tct

[ivi-tct][wrt][xwalk-3068] Remove one tests for geolocation
Merge pull request #1446 from linshen/wrt/update-behavior

[ivi-tct][wrt/behavior][XWALK-3114] Update 3 webapp
Merge pull request #1439 from zqzhang/config-cleanup-ivi

[ivi-tct] Deprecate unreferenced config.xml.crx and config.xml.wgt
Merge pull request #1442 from zqzhang/doc-update-ivi

[ivi-tct][doc] Revise documents to reflect the current being code struct...