libgles-omap3: Remove unsupported core build option ES2.0
libgles-omap3: Remove unsupported core build option ES2.0

ES2.0 build option for SGX user binaries is deprecated as the
corresponding SOC is no longer in production

Signed-off-by: Prabindh Sundareson <prabu at ti.com>
Signed-off-by: Denys Dmytriyenko <d29de71aea38aad3a87d486929cb0aad173ae612@ti.com>

RedFIR/meta-ti,RedFIR/meta-ti,joelagnel/meta-ti,tylerwhall/meta-ti,rcn-ee/meta-ti,tylerwhall/meta-ti,rcn-ee/meta-ti,joelagnel/meta-ti,RedFIR/meta-ti,tylerwhall/meta-ti,tylerwhall/meta-ti,joelagnel/meta-ti,smoosvi/Test4,RedFIR/meta-ti,smoosvi/Test4,jumpnow/meta-ti,jumpnow/meta-ti,rcn-ee/meta-ti,rcn-ee/meta-ti,joelagnel/meta-ti